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class="pagination-link " aria-label="Page 5" aria-current="page">5 </a> </li> </ul> </nav> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2502.09024">arXiv:2502.09024</a> <span> [<a href="https://arxiv.org/pdf/2502.09024">pdf</a>, <a href="https://arxiv.org/format/2502.09024">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Physics and Society">physics.soc-ph</span> </div> </div> <p class="title is-5 mathjax"> Optimal location of reinforced inertia to stabilize power grids </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Park%2C+S">Sangjoon Park</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+H">Cook Hyun Kim</a>, <a href="/search/physics?searchtype=author&query=Kahng%2C+B">B. Kahng</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2502.09024v1-abstract-short" style="display: inline;"> The increasing adoption of renewable energy sources has significantly reduced the inertia in the modernized power grid, making the system more vulnerable. One way to stabilize the grid is to add extra inertia from unused turbines, called the fast frequency response (FFR), to the existing grid. However, reinforcing inertia can cause unintended consequences, such as more significant avalanche failur… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.09024v1-abstract-full').style.display = 'inline'; document.getElementById('2502.09024v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2502.09024v1-abstract-full" style="display: none;"> The increasing adoption of renewable energy sources has significantly reduced the inertia in the modernized power grid, making the system more vulnerable. One way to stabilize the grid is to add extra inertia from unused turbines, called the fast frequency response (FFR), to the existing grid. However, reinforcing inertia can cause unintended consequences, such as more significant avalanche failures. This phenomenon is known as the Braess paradox. Here, we propose a method to find the optimal position of FFR. This method is applied to the second-order Kuramoto model to find an effective position to mitigate cascading failures. To address this, we propose a method to evaluate a ratio between the positive effects of mitigation and the negative consequences. Through this analysis, we find that the peripheral area of the network is a seemingly effective location for inertia reinforcement across various reinforcement scales. This strategy provides essential insights for enhancing the stability of power grids in a time of widespread renewable energy usage. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.09024v1-abstract-full').style.display = 'none'; document.getElementById('2502.09024v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 February, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2025. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 6 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2502.02343">arXiv:2502.02343</a> <span> [<a href="https://arxiv.org/pdf/2502.02343">pdf</a>, <a href="https://arxiv.org/format/2502.02343">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Mesoscale and Nanoscale Physics">cond-mat.mes-hall</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Data Analysis, Statistics and Probability">physics.data-an</span> </div> </div> <p class="title is-5 mathjax"> Direct observation of the exciton polaron by serial femtosecond crystallography on single CsPbBr$_3$ quantum dots </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Shen%2C+Z">Zhou Shen</a>, <a href="/search/physics?searchtype=author&query=Samoli%2C+M">Margarita Samoli</a>, <a href="/search/physics?searchtype=author&query=Erdem%2C+O">Onur Erdem</a>, <a href="/search/physics?searchtype=author&query=Bielecki%2C+J">Johan Bielecki</a>, <a href="/search/physics?searchtype=author&query=Samanta%2C+A+K">Amit Kumar Samanta</a>, <a href="/search/physics?searchtype=author&query=E%2C+J">Juncheng E</a>, <a href="/search/physics?searchtype=author&query=Estillore%2C+A">Armando Estillore</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Chan Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+Y">Yoonhee Kim</a>, <a href="/search/physics?searchtype=author&query=Koliyadu%2C+J">Jayanath Koliyadu</a>, <a href="/search/physics?searchtype=author&query=Letrun%2C+R">Romain Letrun</a>, <a href="/search/physics?searchtype=author&query=Locardi%2C+F">Federico Locardi</a>, <a href="/search/physics?searchtype=author&query=L%C3%BCbke%2C+J">Jannik L眉bke</a>, <a href="/search/physics?searchtype=author&query=Mall%2C+A">Abhishek Mall</a>, <a href="/search/physics?searchtype=author&query=Melo%2C+D">Diogo Melo</a>, <a href="/search/physics?searchtype=author&query=Mills%2C+G">Grant Mills</a>, <a href="/search/physics?searchtype=author&query=Rafie-Zinedine%2C+S">Safi Rafie-Zinedine</a>, <a href="/search/physics?searchtype=author&query=Round%2C+A">Adam Round</a>, <a href="/search/physics?searchtype=author&query=Sato%2C+T">Tokushi Sato</a>, <a href="/search/physics?searchtype=author&query=de+Wijn%2C+R">Raphael de Wijn</a>, <a href="/search/physics?searchtype=author&query=Wollweber%2C+T">Tamme Wollweber</a>, <a href="/search/physics?searchtype=author&query=Worbs%2C+L">Lena Worbs</a>, <a href="/search/physics?searchtype=author&query=Zhuang%2C+Y">Yulong Zhuang</a>, <a href="/search/physics?searchtype=author&query=Mancuso%2C+A+P">Adrian P. Mancuso</a>, <a href="/search/physics?searchtype=author&query=Bean%2C+R">Richard Bean</a> , et al. (6 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2502.02343v1-abstract-short" style="display: inline;"> The outstanding opto-electronic properties of lead halide perovskites have been related to the formation of polarons. Nevertheless, the observation of the atomistic deformation brought about by one electron-hole pair in these materials has remained elusive. Here, we measure the diffraction patterns of single CsPbBr$_3$ quantum dots (QDs) with and without resonant excitation in the single exciton l… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.02343v1-abstract-full').style.display = 'inline'; document.getElementById('2502.02343v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2502.02343v1-abstract-full" style="display: none;"> The outstanding opto-electronic properties of lead halide perovskites have been related to the formation of polarons. Nevertheless, the observation of the atomistic deformation brought about by one electron-hole pair in these materials has remained elusive. Here, we measure the diffraction patterns of single CsPbBr$_3$ quantum dots (QDs) with and without resonant excitation in the single exciton limit using serial femtosecond crystallography (SFX). By reconstructing the 3D differential diffraction pattern, we observe small shifts of the Bragg peaks indicative of a crystal-wide deformation field. Building on DFT calculations, we show that these shifts are consistent with the lattice distortion induced by a delocalized electron and a localized hole, forming a mixed large/small exciton polaron. This result creates a clear picture of the polaronic deformation in CsPbBr$_3$ QDs, highlights the exceptional sensitivity of SFX to lattice distortions in few-nanometer crystallites, and establishes an experimental platform for future studies of electron-lattice interactions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.02343v1-abstract-full').style.display = 'none'; document.getElementById('2502.02343v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 February, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2025. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Main: 12 pages, 5 figures; Supplemental: 21 pages, 11 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2502.01028">arXiv:2502.01028</a> <span> [<a href="https://arxiv.org/pdf/2502.01028">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Chemical Physics">physics.chem-ph</span> </div> </div> <p class="title is-5 mathjax"> Electrochemical CO2 capture with pH-independent redox chemistry </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kim%2C+S+C">Sang Cheol Kim</a>, <a href="/search/physics?searchtype=author&query=Gigantino%2C+M">Marco Gigantino</a>, <a href="/search/physics?searchtype=author&query=Holoubek%2C+J">John Holoubek</a>, <a href="/search/physics?searchtype=author&query=Matthews%2C+J+E">Jesse E. Matthews</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+J">Junjie Chen</a>, <a href="/search/physics?searchtype=author&query=Dho%2C+Y">Yaereen Dho</a>, <a href="/search/physics?searchtype=author&query=Jaramillo%2C+T+F">Thomas F. Jaramillo</a>, <a href="/search/physics?searchtype=author&query=Cui%2C+Y">Yi Cui</a>, <a href="/search/physics?searchtype=author&query=Majumdar%2C+A">Arun Majumdar</a>, <a href="/search/physics?searchtype=author&query=Tzeng%2C+Y">Yan-Kai Tzeng</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+S">Steven Chu</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2502.01028v1-abstract-short" style="display: inline;"> Capture of anthropogenic CO2 is critical for mitigating climate change, and reducing the energy cost is essential for wide-scale deployment. Solubility of inorganic carbon in aqueous solutions depends on the pH, and electrochemical modulation of the pH has been investigated as a means of CO2 capture and release. However, reported methods incur unavoidable energy costs due to thermodynamic penaltie… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.01028v1-abstract-full').style.display = 'inline'; document.getElementById('2502.01028v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2502.01028v1-abstract-full" style="display: none;"> Capture of anthropogenic CO2 is critical for mitigating climate change, and reducing the energy cost is essential for wide-scale deployment. Solubility of inorganic carbon in aqueous solutions depends on the pH, and electrochemical modulation of the pH has been investigated as a means of CO2 capture and release. However, reported methods incur unavoidable energy costs due to thermodynamic penalties. In this study, we introduce a pH-independent redox chemistry that greatly lowers the thermodynamic energy costs by changing the pH without directly changing the [H+]. We show that the redox reaction of TEMPO molecules modulates the pH for capture and release of CO2 in a flow cell with an energy cost as low as 2.6 kJ/mol of CO2 corresponding to 0.027 eV/molecule. A molecular model, supported by MD and DFT simulations, is proposed of how the pH is decreased by 7.6 while largely avoiding the entropic energy cost associated with increasing the [H+]. We believe that this work showcases the potential of pH-independent redox chemistries for practical and cost-effective CO2 capture. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.01028v1-abstract-full').style.display = 'none'; document.getElementById('2502.01028v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 February, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2025. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2501.14827">arXiv:2501.14827</a> <span> [<a href="https://arxiv.org/pdf/2501.14827">pdf</a>, <a href="https://arxiv.org/format/2501.14827">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Proposal of the KOTO II experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Ahn%2C+J+K">Jung Keun Ahn</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+A">Antonella Antonelli</a>, <a href="/search/physics?searchtype=author&query=Anzivino%2C+G">Giuseppina Anzivino</a>, <a href="/search/physics?searchtype=author&query=Augustine%2C+E">Emile Augustine</a>, <a href="/search/physics?searchtype=author&query=Bandiera%2C+L">Laura Bandiera</a>, <a href="/search/physics?searchtype=author&query=Bian%2C+J">Jianming Bian</a>, <a href="/search/physics?searchtype=author&query=Brizioli%2C+F">Francesco Brizioli</a>, <a href="/search/physics?searchtype=author&query=De+Capua%2C+S">Stefano De Capua</a>, <a href="/search/physics?searchtype=author&query=Carini%2C+G">Gabriella Carini</a>, <a href="/search/physics?searchtype=author&query=Chobanova%2C+V">Veronika Chobanova</a>, <a href="/search/physics?searchtype=author&query=D%27Ambrosio%2C+G">Giancarlo D'Ambrosio</a>, <a href="/search/physics?searchtype=author&query=Dainton%2C+J+B">John Bourke Dainton</a>, <a href="/search/physics?searchtype=author&query=D%C5%91brich%2C+B">Babette D艖brich</a>, <a href="/search/physics?searchtype=author&query=Fry%2C+J">John Fry</a>, <a href="/search/physics?searchtype=author&query=Gianoli%2C+A">Alberto Gianoli</a>, <a href="/search/physics?searchtype=author&query=Glazov%2C+A">Alexander Glazov</a>, <a href="/search/physics?searchtype=author&query=Gonzalez%2C+M">Mario Gonzalez</a>, <a href="/search/physics?searchtype=author&query=Gorbahn%2C+M">Martin Gorbahn</a>, <a href="/search/physics?searchtype=author&query=Goudzovski%2C+E">Evgueni Goudzovski</a>, <a href="/search/physics?searchtype=author&query=Homma%2C+M">Mei Homma</a>, <a href="/search/physics?searchtype=author&query=Hsiung%2C+Y+B">Yee B. Hsiung</a>, <a href="/search/physics?searchtype=author&query=Husek%2C+T">Tom谩拧 Husek</a>, <a href="/search/physics?searchtype=author&query=Hutchcroft%2C+D">David Hutchcroft</a>, <a href="/search/physics?searchtype=author&query=Iyer%2C+A">Abhishek Iyer</a>, <a href="/search/physics?searchtype=author&query=Jones%2C+R+W+L">Roger William Lewis Jones</a> , et al. (57 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2501.14827v1-abstract-short" style="display: inline;"> The KOTO II experiment is proposed to measure the branching ratio of the decay $K_L\to蟺^0谓\bar谓$ at J-PARC. With a beamline to extract long-lived neutral kaons at 5 degrees from a production target, the single event sensitivity of the decay is $8.5\times 10^{-13}$, which is much smaller than the Standard Model prediction $3\times 10^{-11}$. This allows searches for new physics beyond the Standard… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.14827v1-abstract-full').style.display = 'inline'; document.getElementById('2501.14827v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2501.14827v1-abstract-full" style="display: none;"> The KOTO II experiment is proposed to measure the branching ratio of the decay $K_L\to蟺^0谓\bar谓$ at J-PARC. With a beamline to extract long-lived neutral kaons at 5 degrees from a production target, the single event sensitivity of the decay is $8.5\times 10^{-13}$, which is much smaller than the Standard Model prediction $3\times 10^{-11}$. This allows searches for new physics beyond the Standard Model and the first discovery of the decay with a significance exceeding $5蟽$. As the only experiment proposed in the world dedicated to rare kaon decays, KOTO II will be indispensable in the quest for a complete understanding of flavor dynamics in the quark sector. Moreover, by combining efforts from the kaon community worldwide, we plan to develop the KOTO II detector further and expand the physics reach of the experiment to include measurements of the branching ratio of the $K_L\to蟺^0\ell^+\ell^-$ decays, studies of other $K_L$ decays, and searches for dark photons, axions, and axion-like particles. KOTO II will therefore obtain a comprehensive understanding of $K_L$ decays, providing further constraints on new physics scenarios with existing $K^+$ results. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.14827v1-abstract-full').style.display = 'none'; document.getElementById('2501.14827v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2025. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Submitted to the J-PARC PAC. arXiv admin note: substantial text overlap with arXiv:2110.04462</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2412.08662">arXiv:2412.08662</a> <span> [<a href="https://arxiv.org/pdf/2412.08662">pdf</a>, <a href="https://arxiv.org/format/2412.08662">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/19/12/P12008">10.1088/1748-0221/19/12/P12008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Performance of the prototype beam drift chamber for LAMPS at RAON with proton and Carbon-12 beams </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kim%2C+H">H. Kim</a>, <a href="/search/physics?searchtype=author&query=Bae%2C+Y">Y. Bae</a>, <a href="/search/physics?searchtype=author&query=Heo%2C+C">C. Heo</a>, <a href="/search/physics?searchtype=author&query=Seo%2C+J">J. Seo</a>, <a href="/search/physics?searchtype=author&query=Hwang%2C+J">J. Hwang</a>, <a href="/search/physics?searchtype=author&query=Moon%2C+D+H">D. H. Moon</a>, <a href="/search/physics?searchtype=author&query=Ahn%2C+D+S">D. S. Ahn</a>, <a href="/search/physics?searchtype=author&query=Ahn%2C+J+K">J. K. Ahn</a>, <a href="/search/physics?searchtype=author&query=Bae%2C+J">J. Bae</a>, <a href="/search/physics?searchtype=author&query=Bok%2C+J">J. Bok</a>, <a href="/search/physics?searchtype=author&query=Cheon%2C+Y">Y. Cheon</a>, <a href="/search/physics?searchtype=author&query=Choi%2C+S+W">S. W. Choi</a>, <a href="/search/physics?searchtype=author&query=Do%2C+S">S. Do</a>, <a href="/search/physics?searchtype=author&query=Hong%2C+B">B. Hong</a>, <a href="/search/physics?searchtype=author&query=Hong%2C+S+-">S. -W. Hong</a>, <a href="/search/physics?searchtype=author&query=Huh%2C+J">J. Huh</a>, <a href="/search/physics?searchtype=author&query=Hwang%2C+S">S. Hwang</a>, <a href="/search/physics?searchtype=author&query=Jang%2C+Y">Y. Jang</a>, <a href="/search/physics?searchtype=author&query=Kang%2C+B">B. Kang</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+A">A. Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+B">B. Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">C. Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+E+-">E. -J. Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+G">G. Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+G">G. Kim</a> , et al. (23 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2412.08662v1-abstract-short" style="display: inline;"> Beam Drift Chamber (BDC) is designed to reconstruct the trajectories of incident rare isotope beams provided by RAON (Rare isotope Accelerator complex for ON-line experiments) into the experimental target of LAMPS (Large Acceptance Multi-Purpose Spectrometer). To conduct the performance test of the BDC, the prototype BDC (pBDC) is manufactured and evaluated with the high energy ion beams from HIMA… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.08662v1-abstract-full').style.display = 'inline'; document.getElementById('2412.08662v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2412.08662v1-abstract-full" style="display: none;"> Beam Drift Chamber (BDC) is designed to reconstruct the trajectories of incident rare isotope beams provided by RAON (Rare isotope Accelerator complex for ON-line experiments) into the experimental target of LAMPS (Large Acceptance Multi-Purpose Spectrometer). To conduct the performance test of the BDC, the prototype BDC (pBDC) is manufactured and evaluated with the high energy ion beams from HIMAC (Heavy Ion Medical Accelerator in Chiba) facility in Japan. Two kinds of ion beams, 100 MeV proton, and 200 MeV/u $^{12}$C, have been utilized for this evaluation, and the track reconstruction efficiency and position resolution have been measured as the function of applied high voltage. This paper introduces the construction details and presents the track reconstruction efficiency and position resolution of pBDC. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.08662v1-abstract-full').style.display = 'none'; document.getElementById('2412.08662v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 15 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 19 (2024) P12008 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2412.07048">arXiv:2412.07048</a> <span> [<a href="https://arxiv.org/pdf/2412.07048">pdf</a>, <a href="https://arxiv.org/format/2412.07048">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Chemical Physics">physics.chem-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> </div> <p class="title is-5 mathjax"> Thermodynamic consistency and fluctuations in mesoscopic stochastic simulations of reactive gas mixtures </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Polimeno%2C+M">Matteo Polimeno</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Changho Kim</a>, <a href="/search/physics?searchtype=author&query=Blanchette%2C+F">Fran莽ois Blanchette</a>, <a href="/search/physics?searchtype=author&query=Srivastava%2C+I">Ishan Srivastava</a>, <a href="/search/physics?searchtype=author&query=Garcia%2C+A+L">Alejandro L. Garcia</a>, <a href="/search/physics?searchtype=author&query=Nonaka%2C+A+J">Andy J. Nonaka</a>, <a href="/search/physics?searchtype=author&query=Bell%2C+J+B">John B. Bell</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2412.07048v1-abstract-short" style="display: inline;"> It is essential that mesoscopic simulations of reactive systems reproduce the correct statistical distributions at thermodynamic equilibrium. By considering a compressible fluctuating hydrodynamics (FHD) simulation method of ideal gas mixtures undergoing reversible reactions described by the chemical Langevin equations, we show that thermodynamic consistency in reaction rates and the use of instan… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.07048v1-abstract-full').style.display = 'inline'; document.getElementById('2412.07048v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2412.07048v1-abstract-full" style="display: none;"> It is essential that mesoscopic simulations of reactive systems reproduce the correct statistical distributions at thermodynamic equilibrium. By considering a compressible fluctuating hydrodynamics (FHD) simulation method of ideal gas mixtures undergoing reversible reactions described by the chemical Langevin equations, we show that thermodynamic consistency in reaction rates and the use of instantaneous temperatures for the evaluation of reaction rates is required for fluctuations for the overall system to be correct. We then formulate the required properties of a thermodynamically-consistent reaction (TCR) model. As noted in the literature, while reactions are often discussed in terms of forward and reverse rates, these rates should not be modeled independently because they must be compatible with thermodynamic equilibrium for the system. Using a simple TCR model where each chemical species has constant heat capacity, we derive the explicit condition that the forward and reverse reaction rate constants must satisfy in order for the system to be thermodynamically consistent. We perform equilibrium and non-equilibrium simulations of ideal gas mixtures undergoing a reversible dimerization reaction to measure the fluctuational behavior of the system numerically. We confirm that FHD simulations with the TCR model give the correct static structure factor of equilibrium fluctuations. For the statistically steady simulation of a gas mixture between two isothermal walls with different temperatures, we show using the TCR model that the temperature variance agrees with the corresponding thermodynamic-equilibrium temperature variance in the interior of the system, whereas noticeable deviations are present in regions near walls, where chemistry is far from equilibrium. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.07048v1-abstract-full').style.display = 'none'; document.getElementById('2412.07048v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2411.16092">arXiv:2411.16092</a> <span> [<a href="https://arxiv.org/pdf/2411.16092">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Electronic Trap Detection with Carrier-Resolved Photo-Hall Effect </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Gunawan%2C+O">Oki Gunawan</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Chaeyoun Kim</a>, <a href="/search/physics?searchtype=author&query=Nainggolan%2C+B">Bonfilio Nainggolan</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+M">Minyeul Lee</a>, <a href="/search/physics?searchtype=author&query=Shin%2C+J">Jonghwa Shin</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+D+S">Dong Suk Kim</a>, <a href="/search/physics?searchtype=author&query=Jo%2C+Y">Yimhyun Jo</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+M">Minjin Kim</a>, <a href="/search/physics?searchtype=author&query=Euvrard%2C+J">Julie Euvrard</a>, <a href="/search/physics?searchtype=author&query=Bishop%2C+D">Douglas Bishop</a>, <a href="/search/physics?searchtype=author&query=Libsch%2C+F">Frank Libsch</a>, <a href="/search/physics?searchtype=author&query=Todorov%2C+T">Teodor Todorov</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+Y">Yunna Kim</a>, <a href="/search/physics?searchtype=author&query=Shin%2C+B">Byungha Shin</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2411.16092v1-abstract-short" style="display: inline;"> Electronic trap states are a critical yet unavoidable aspect of semiconductor devices, impacting performance of various electronic devices such as transistors, memory devices, solar cells, and LEDs. The density, energy level, and position of these trap states often enable or constrain device functionality, making their measurement crucial in materials science and device fabrication. Most methods f… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.16092v1-abstract-full').style.display = 'inline'; document.getElementById('2411.16092v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.16092v1-abstract-full" style="display: none;"> Electronic trap states are a critical yet unavoidable aspect of semiconductor devices, impacting performance of various electronic devices such as transistors, memory devices, solar cells, and LEDs. The density, energy level, and position of these trap states often enable or constrain device functionality, making their measurement crucial in materials science and device fabrication. Most methods for measuring trap states involve fabricating a junction, which can inadvertently introduce or alter traps, highlighting the need for alternative, less-invasive techniques. Here, we present a unique photo-Hall-based method to detect and characterize trap density and energy level while concurrently extracting key carrier properties, including mobility, photocarrier density, recombination lifetime, and diffusion length. This technique relies on analyzing the photo-Hall data in terms of "photo-Hall conductivity" vs. electrical conductivity under varying light intensities and temperatures. We show that the photo-Hall effect, in the presence of traps, follows an $\textit{astonishingly simple}$ relationship - $\textit{a hyperbola equation}$ - that reveals detailed insights into charge transport and trap occupation. We have successfully applied this technique to P and N-type silicon as a benchmark and to high-performance halide perovskite photovoltaic films. This technique substantially expands the capability of Hall effect-based measurements by integrating the effects of the four most common excitations in nature - electric field, magnetic field, photon, and phonon in solids - into a single equation and enabling unparalleled extraction of charge carrier and trap properties in semiconductors. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.16092v1-abstract-full').style.display = 'none'; document.getElementById('2411.16092v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Main manuscript (15 pages, 3 figures) and Supplementary information (27 pages, 7 figures, 4 tables)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2411.12966">arXiv:2411.12966</a> <span> [<a href="https://arxiv.org/pdf/2411.12966">pdf</a>, <a href="https://arxiv.org/format/2411.12966">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> </div> </div> <p class="title is-5 mathjax"> Internal stresses in low-Reynolds-number fractal aggregates </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Polimeno%2C+M">Matteo Polimeno</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Changho Kim</a>, <a href="/search/physics?searchtype=author&query=Blanchette%2C+F">Fran莽ois Blanchette</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2411.12966v1-abstract-short" style="display: inline;"> We present a numerical model of fractal-structured aggregates in low-Reynolds-number flows. Assuming that aggregates are made of cubic particles, we first use a boundary integral method to compute the stresses acting on the boundary of the aggregates. From these external stresses, we compute the stresses within the aggregates in order to gain insights on their breakup, or disaggregation. We focus… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.12966v1-abstract-full').style.display = 'inline'; document.getElementById('2411.12966v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.12966v1-abstract-full" style="display: none;"> We present a numerical model of fractal-structured aggregates in low-Reynolds-number flows. Assuming that aggregates are made of cubic particles, we first use a boundary integral method to compute the stresses acting on the boundary of the aggregates. From these external stresses, we compute the stresses within the aggregates in order to gain insights on their breakup, or disaggregation. We focus on systems in which aggregates are either settling under gravity or subjected to a background shear flow and study two types of aggregates, one with fractal dimension slightly less than two and one with fractal dimension slightly above two. We partition the aggregates into multiple shells based on the distance between the individual cubes in the aggregates and their center of mass and observe the distribution of internal stresses in each shell. Our findings indicate that large stresses are least likely to occur near the far edges of the aggregates. We also find that, for settling aggregates, the maximum internal stress scales as about 7.5% of the ratio of an aggregate's apparent weight to the area of the thinnest connection, here a single square. For aggregates exposed to a shear flow, we find that the maximum internal stress scales roughly quadratically with the aggregate radius. In addition, after breaking aggregates at the face with the maximum internal stress, we compute the mass distribution of sub-aggregates and observe significant differences between the settling and shear setups for the two types of aggregates, with the low-fractal-dimension aggregates being more likely to split approximately evenly. Information obtained by our numerical model can be used to develop more refined dynamical models that incorporate disaggregation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.12966v1-abstract-full').style.display = 'none'; document.getElementById('2411.12966v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.09233">arXiv:2409.09233</a> <span> [<a href="https://arxiv.org/pdf/2409.09233">pdf</a>, <a href="https://arxiv.org/format/2409.09233">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> </div> </div> <p class="title is-5 mathjax"> A new critical growth parameter and mechanistic model for SiC nanowire synthesis via Si substrate carbonization: the role of H$_2$/CH$_4$ gas flow ratio </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Koo%2C+J">Junghyun Koo</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Chinkyo Kim</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2409.09233v1-abstract-short" style="display: inline;"> SiC structures, including nanowires and films, can be effectively grown on Si substrates through carbonization. However, growth parameters other than temperature, which influence the preferential formation of SiC nanowires or films, have not yet been identified. In this work, we investigate SiC synthesis via Si carbonization using methane (CH$_4$) by varying the growth temperature and the hydrogen… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.09233v1-abstract-full').style.display = 'inline'; document.getElementById('2409.09233v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.09233v1-abstract-full" style="display: none;"> SiC structures, including nanowires and films, can be effectively grown on Si substrates through carbonization. However, growth parameters other than temperature, which influence the preferential formation of SiC nanowires or films, have not yet been identified. In this work, we investigate SiC synthesis via Si carbonization using methane (CH$_4$) by varying the growth temperature and the hydrogen to methane gas flow ratio (H$_2$/CH$_4$). We demonstrate that adjusting these parameters allows for the preferential growth of SiC nanowires or films. Specifically, SiC nanowires are preferentially grown when the H$_2$/CH$_4$ ratio exceeds a specific threshold, which varies with the growth temperature, ranging between 1200$^\circ$C and 1310$^\circ$C. Establishing this precise growth window for SiC nanowires in terms of the H$_2$/CH$_4$ ratio and growth temperature provides new insights into the parameter-driven morphology of SiC. Furthermore, we propose a mechanistic model to explain the preferential growth of either SiC nanowires or films, based on the kinetics of gas-phase reactions and surface processes. These findings not only advance our understanding of SiC growth mechanisms but also pave the way for optimized fabrication strategies for SiC-based nanostructures. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.09233v1-abstract-full').style.display = 'none'; document.getElementById('2409.09233v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 5 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.15165">arXiv:2407.15165</a> <span> [<a href="https://arxiv.org/pdf/2407.15165">pdf</a>, <a href="https://arxiv.org/format/2407.15165">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Physics and Society">physics.soc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Systems and Control">eess.SY</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Adaptation and Self-Organizing Systems">nlin.AO</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.chaos.2024.115293">10.1016/j.chaos.2024.115293 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Reinforcement Learning Optimizes Power Dispatch in Decentralized Power Grid </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Lee%2C+Y">Yongsun Lee</a>, <a href="/search/physics?searchtype=author&query=Choi%2C+H">Hoyun Choi</a>, <a href="/search/physics?searchtype=author&query=Pagnier%2C+L">Laurent Pagnier</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+H">Cook Hyun Kim</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+J">Jongshin Lee</a>, <a href="/search/physics?searchtype=author&query=Jhun%2C+B">Bukyoung Jhun</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+H">Heetae Kim</a>, <a href="/search/physics?searchtype=author&query=Kurths%2C+J">Juergen Kurths</a>, <a href="/search/physics?searchtype=author&query=Kahng%2C+B">B. Kahng</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2407.15165v1-abstract-short" style="display: inline;"> Effective frequency control in power grids has become increasingly important with the increasing demand for renewable energy sources. Here, we propose a novel strategy for resolving this challenge using graph convolutional proximal policy optimization (GC-PPO). The GC-PPO method can optimally determine how much power individual buses dispatch to reduce frequency fluctuations across a power grid. W… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.15165v1-abstract-full').style.display = 'inline'; document.getElementById('2407.15165v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.15165v1-abstract-full" style="display: none;"> Effective frequency control in power grids has become increasingly important with the increasing demand for renewable energy sources. Here, we propose a novel strategy for resolving this challenge using graph convolutional proximal policy optimization (GC-PPO). The GC-PPO method can optimally determine how much power individual buses dispatch to reduce frequency fluctuations across a power grid. We demonstrate its efficacy in controlling disturbances by applying the GC-PPO to the power grid of the UK. The performance of GC-PPO is outstanding compared to the classical methods. This result highlights the promising role of GC-PPO in enhancing the stability and reliability of power systems by switching lines or decentralizing grid topology. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.15165v1-abstract-full').style.display = 'none'; document.getElementById('2407.15165v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 6 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Chaos, Solitons and Fractals 186 (2024) 115293 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.12227">arXiv:2407.12227</a> <span> [<a href="https://arxiv.org/pdf/2407.12227">pdf</a>, <a href="https://arxiv.org/format/2407.12227">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Development of MMC-based lithium molybdate cryogenic calorimeters for AMoRE-II </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Agrawal%2C+A">A. Agrawal</a>, <a href="/search/physics?searchtype=author&query=Alenkov%2C+V+V">V. V. Alenkov</a>, <a href="/search/physics?searchtype=author&query=Aryal%2C+P">P. Aryal</a>, <a href="/search/physics?searchtype=author&query=Bae%2C+H">H. Bae</a>, <a href="/search/physics?searchtype=author&query=Beyer%2C+J">J. Beyer</a>, <a href="/search/physics?searchtype=author&query=Bhandari%2C+B">B. Bhandari</a>, <a href="/search/physics?searchtype=author&query=Boiko%2C+R+S">R. S. Boiko</a>, <a href="/search/physics?searchtype=author&query=Boonin%2C+K">K. Boonin</a>, <a href="/search/physics?searchtype=author&query=Buzanov%2C+O">O. Buzanov</a>, <a href="/search/physics?searchtype=author&query=Byeon%2C+C+R">C. R. Byeon</a>, <a href="/search/physics?searchtype=author&query=Chanthima%2C+N">N. Chanthima</a>, <a href="/search/physics?searchtype=author&query=Cheoun%2C+M+K">M. K. Cheoun</a>, <a href="/search/physics?searchtype=author&query=Choe%2C+J+S">J. S. Choe</a>, <a href="/search/physics?searchtype=author&query=Choi%2C+S">S. Choi</a>, <a href="/search/physics?searchtype=author&query=Choudhury%2C+S">S. Choudhury</a>, <a href="/search/physics?searchtype=author&query=Chung%2C+J+S">J. S. Chung</a>, <a href="/search/physics?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/physics?searchtype=author&query=Djamal%2C+M">M. Djamal</a>, <a href="/search/physics?searchtype=author&query=Drung%2C+D">D. Drung</a>, <a href="/search/physics?searchtype=author&query=Enss%2C+C">C. Enss</a>, <a href="/search/physics?searchtype=author&query=Fleischmann%2C+A">A. Fleischmann</a>, <a href="/search/physics?searchtype=author&query=Gangapshev%2C+A+M">A. M. Gangapshev</a>, <a href="/search/physics?searchtype=author&query=Gastaldo%2C+L">L. Gastaldo</a>, <a href="/search/physics?searchtype=author&query=Gavrilyuk%2C+Y+M">Y. M. Gavrilyuk</a>, <a href="/search/physics?searchtype=author&query=Gezhaev%2C+A+M">A. M. Gezhaev</a> , et al. (84 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2407.12227v1-abstract-short" style="display: inline;"> The AMoRE collaboration searches for neutrinoless double beta decay of $^{100}$Mo using molybdate scintillating crystals via low temperature thermal calorimetric detection. The early phases of the experiment, AMoRE-pilot and AMoRE-I, have demonstrated competitive discovery potential. Presently, the AMoRE-II experiment, featuring a large detector array with about 90 kg of $^{100}$Mo isotope, is und… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.12227v1-abstract-full').style.display = 'inline'; document.getElementById('2407.12227v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.12227v1-abstract-full" style="display: none;"> The AMoRE collaboration searches for neutrinoless double beta decay of $^{100}$Mo using molybdate scintillating crystals via low temperature thermal calorimetric detection. The early phases of the experiment, AMoRE-pilot and AMoRE-I, have demonstrated competitive discovery potential. Presently, the AMoRE-II experiment, featuring a large detector array with about 90 kg of $^{100}$Mo isotope, is under construction.This paper discusses the baseline design and characterization of the lithium molybdate cryogenic calorimeters to be used in the AMoRE-II detector modules. The results from prototype setups that incorporate new housing structures and two different crystal masses (316 g and 517 - 521 g), operated at 10 mK temperature, show energy resolutions (FWHM) of 7.55 - 8.82 keV at the 2.615 MeV $^{208}$Tl $纬$ line, and effective light detection of 0.79 - 0.96 keV/MeV. The simultaneous heat and light detection enables clear separation of alpha particles with a discrimination power of 12.37 - 19.50 at the energy region around $^6$Li(n, $伪$)$^3$H with Q-value = 4.785 MeV. Promising detector performances were demonstrated at temperatures as high as 30 mK, which relaxes the temperature constraints for operating the large AMoRE-II array. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.12227v1-abstract-full').style.display = 'none'; document.getElementById('2407.12227v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.07954">arXiv:2407.07954</a> <span> [<a href="https://arxiv.org/pdf/2407.07954">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Medical Physics">physics.med-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> </div> </div> <p class="title is-5 mathjax"> 3D E-textile for Exercise Physiology and Clinical Maternal Health Monitoring </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Zhao%2C+J">Junyi Zhao</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Chansoo Kim</a>, <a href="/search/physics?searchtype=author&query=Li%2C+W">Weilun Li</a>, <a href="/search/physics?searchtype=author&query=Wen%2C+Z">Zichao Wen</a>, <a href="/search/physics?searchtype=author&query=Xiao%2C+Z">Zhili Xiao</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+Y">Yong Wang</a>, <a href="/search/physics?searchtype=author&query=Chakrabartty%2C+S">Shantanu Chakrabartty</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+C">Chuan Wang</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2407.07954v1-abstract-short" style="display: inline;"> Electronic textiles (E-textiles) offer great wearing comfort and unobtrusiveness, thus holding potential for next-generation health monitoring wearables. However, the practical implementation is hampered by challenges associated with poor signal quality, substantial motion artifacts, durability for long-term usage, and non-ideal user experience. Here, we report a cost-effective E-textile system th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.07954v1-abstract-full').style.display = 'inline'; document.getElementById('2407.07954v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.07954v1-abstract-full" style="display: none;"> Electronic textiles (E-textiles) offer great wearing comfort and unobtrusiveness, thus holding potential for next-generation health monitoring wearables. However, the practical implementation is hampered by challenges associated with poor signal quality, substantial motion artifacts, durability for long-term usage, and non-ideal user experience. Here, we report a cost-effective E-textile system that features 3D microfiber-based electrodes for greatly increasing the surface area. The soft and fluffy conductive microfibers disperse freely and securely adhere to the skin, achieving a low impedance at the electrode-skin interface even in the absence of gel. A superhydrophobic fluorinated self-assembled monolayer was deposited on the E-textile surface to render it waterproof while retaining the electrical conductivity. Equipped with a custom-designed motion-artifact canceling wireless data recording circuit, the E-textile system could be integrated into a variety of smart garments for exercise physiology and health monitoring applications. Real-time multimodal electrophysiological signal monitoring, including electrocardiogram (ECG) and electromyography (EMG), was successfully carried out during strenuous cycling and even underwater swimming activities. Furthermore, a multi-channel E-textile was developed and implemented in clinical patient studies for simultaneous real-time monitoring of maternal ECG and uterine EMG signals, incorporating spatial-temporal potential mapping capabilities. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.07954v1-abstract-full').style.display = 'none'; document.getElementById('2407.07954v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 6 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.12157">arXiv:2406.12157</a> <span> [<a href="https://arxiv.org/pdf/2406.12157">pdf</a>, <a href="https://arxiv.org/format/2406.12157">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Numerical Analysis">math.NA</span> </div> </div> <p class="title is-5 mathjax"> An Introduction to Computational Fluctuating Hydrodynamics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Garcia%2C+A+L">Alejandro L. Garcia</a>, <a href="/search/physics?searchtype=author&query=Bell%2C+J+B">John B. Bell</a>, <a href="/search/physics?searchtype=author&query=Nonaka%2C+A">Andrew Nonaka</a>, <a href="/search/physics?searchtype=author&query=Srivastava%2C+I">Ishan Srivastava</a>, <a href="/search/physics?searchtype=author&query=Ladiges%2C+D">Daniel Ladiges</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Changho Kim</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2406.12157v1-abstract-short" style="display: inline;"> These notes are an introduction to fluctuating hydrodynamics (FHD) and the formulation of numerical schemes for the resulting stochastic partial differential equations (PDEs). Fluctuating hydrodynamics was originally introduced by Landau and Lifshitz as a way to put thermal fluctuations into a continuum framework by including a stochastic forcing to each dissipative transport process (e.g., heat f… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.12157v1-abstract-full').style.display = 'inline'; document.getElementById('2406.12157v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.12157v1-abstract-full" style="display: none;"> These notes are an introduction to fluctuating hydrodynamics (FHD) and the formulation of numerical schemes for the resulting stochastic partial differential equations (PDEs). Fluctuating hydrodynamics was originally introduced by Landau and Lifshitz as a way to put thermal fluctuations into a continuum framework by including a stochastic forcing to each dissipative transport process (e.g., heat flux). While FHD has been useful in modeling transport and fluid dynamics at the mesoscopic scale, theoretical calculations have been feasible only with simplifying assumptions. As such there is great interest in numerical schemes for Computational Fluctuating Hydrodynamics (CFHD). There are a variety of algorithms (e.g., spectral, finite element, lattice Boltzmann) but in this introduction we focus on finite volume schemes. Accompanying these notes is a demonstration program in Python available on GitHub. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.12157v1-abstract-full').style.display = 'none'; document.getElementById('2406.12157v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.09698">arXiv:2406.09698</a> <span> [<a href="https://arxiv.org/pdf/2406.09698">pdf</a>, <a href="https://arxiv.org/format/2406.09698">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Projected background and sensitivity of AMoRE-II </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Agrawal%2C+A">A. Agrawal</a>, <a href="/search/physics?searchtype=author&query=Alenkov%2C+V+V">V. V. Alenkov</a>, <a href="/search/physics?searchtype=author&query=Aryal%2C+P">P. Aryal</a>, <a href="/search/physics?searchtype=author&query=Beyer%2C+J">J. Beyer</a>, <a href="/search/physics?searchtype=author&query=Bhandari%2C+B">B. Bhandari</a>, <a href="/search/physics?searchtype=author&query=Boiko%2C+R+S">R. S. Boiko</a>, <a href="/search/physics?searchtype=author&query=Boonin%2C+K">K. Boonin</a>, <a href="/search/physics?searchtype=author&query=Buzanov%2C+O">O. Buzanov</a>, <a href="/search/physics?searchtype=author&query=Byeon%2C+C+R">C. R. Byeon</a>, <a href="/search/physics?searchtype=author&query=Chanthima%2C+N">N. Chanthima</a>, <a href="/search/physics?searchtype=author&query=Cheoun%2C+M+K">M. K. Cheoun</a>, <a href="/search/physics?searchtype=author&query=Choe%2C+J+S">J. S. Choe</a>, <a href="/search/physics?searchtype=author&query=Choi%2C+S">Seonho Choi</a>, <a href="/search/physics?searchtype=author&query=Choudhury%2C+S">S. Choudhury</a>, <a href="/search/physics?searchtype=author&query=Chung%2C+J+S">J. S. Chung</a>, <a href="/search/physics?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/physics?searchtype=author&query=Djamal%2C+M">M. Djamal</a>, <a href="/search/physics?searchtype=author&query=Drung%2C+D">D. Drung</a>, <a href="/search/physics?searchtype=author&query=Enss%2C+C">C. Enss</a>, <a href="/search/physics?searchtype=author&query=Fleischmann%2C+A">A. Fleischmann</a>, <a href="/search/physics?searchtype=author&query=Gangapshev%2C+A+M">A. M. Gangapshev</a>, <a href="/search/physics?searchtype=author&query=Gastaldo%2C+L">L. Gastaldo</a>, <a href="/search/physics?searchtype=author&query=Gavrilyuk%2C+Y+M">Y. M. Gavrilyuk</a>, <a href="/search/physics?searchtype=author&query=Gezhaev%2C+A+M">A. M. Gezhaev</a>, <a href="/search/physics?searchtype=author&query=Gileva%2C+O">O. Gileva</a> , et al. (81 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2406.09698v2-abstract-short" style="display: inline;"> AMoRE-II aims to search for neutrinoless double beta decay with an array of 423 Li$_2$$^{100}$MoO$_4$ crystals operating in the cryogenic system as the main phase of the Advanced Molybdenum-based Rare process Experiment (AMoRE). AMoRE has been planned to operate in three phases: AMoRE-pilot, AMoRE-I, and AMoRE-II. AMoRE-II is currently being installed at the Yemi Underground Laboratory, located ap… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.09698v2-abstract-full').style.display = 'inline'; document.getElementById('2406.09698v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.09698v2-abstract-full" style="display: none;"> AMoRE-II aims to search for neutrinoless double beta decay with an array of 423 Li$_2$$^{100}$MoO$_4$ crystals operating in the cryogenic system as the main phase of the Advanced Molybdenum-based Rare process Experiment (AMoRE). AMoRE has been planned to operate in three phases: AMoRE-pilot, AMoRE-I, and AMoRE-II. AMoRE-II is currently being installed at the Yemi Underground Laboratory, located approximately 1000 meters deep in Jeongseon, Korea. The goal of AMoRE-II is to reach up to $T^{0谓尾尾}_{1/2}$ $\sim$ 6 $\times$ 10$^{26}$ years, corresponding to an effective Majorana mass of 15 - 29 meV, covering all the inverted mass hierarchy regions. To achieve this, the background level of the experimental configurations and possible background sources of gamma and beta events should be well understood. We have intensively performed Monte Carlo simulations using the GEANT4 toolkit in all the experimental configurations with potential sources. We report the estimated background level that meets the 10$^{-4}$counts/(keV$\cdot$kg$\cdot$yr) requirement for AMoRE-II in the region of interest (ROI) and show the projected half-life sensitivity based on the simulation study. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.09698v2-abstract-full').style.display = 'none'; document.getElementById('2406.09698v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.01963">arXiv:2406.01963</a> <span> [<a href="https://arxiv.org/pdf/2406.01963">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Mesoscale and Nanoscale Physics">cond-mat.mes-hall</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> </div> </div> <p class="title is-5 mathjax"> Diamond molecular balance: Revolutionizing high-resolution mass spectrometry from MDa to TDa at room temperature </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Lee%2C+D">Donggeun Lee</a>, <a href="/search/physics?searchtype=author&query=Jeon%2C+S">Seung-Woo Jeon</a>, <a href="/search/physics?searchtype=author&query=Yi%2C+C">Chang-Hwan Yi</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+Y">Yang-Hee Kim</a>, <a href="/search/physics?searchtype=author&query=Choi%2C+Y">Yeeun Choi</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+S">Sang-Hun Lee</a>, <a href="/search/physics?searchtype=author&query=Cha%2C+J">Jinwoong Cha</a>, <a href="/search/physics?searchtype=author&query=Shim%2C+S">Seung-Bo Shim</a>, <a href="/search/physics?searchtype=author&query=Suh%2C+J">Junho Suh</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+I">Il-Young Kim</a>, <a href="/search/physics?searchtype=author&query=Kang%2C+D+D">Dongyeon Daniel Kang</a>, <a href="/search/physics?searchtype=author&query=Jung%2C+H">Hojoong Jung</a>, <a href="/search/physics?searchtype=author&query=Jeong%2C+C">Cherlhyun Jeong</a>, <a href="/search/physics?searchtype=author&query=Ahn%2C+J">Jae-pyoung Ahn</a>, <a href="/search/physics?searchtype=author&query=Park%2C+H+C">Hee Chul Park</a>, <a href="/search/physics?searchtype=author&query=Han%2C+S">Sang-Wook Han</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Chulki Kim</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2406.01963v3-abstract-short" style="display: inline;"> The significance of mass spectrometry lies in its unparalleled ability to accurately identify and quantify molecules in complex samples, providing invaluable insights into molecular structures and interactions. Here, we leverage diamond nanostructures as highly sensitive mass sensors by utilizing a self-excitation mechanism under an electron beam in a conventional scanning electron microscope (SEM… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.01963v3-abstract-full').style.display = 'inline'; document.getElementById('2406.01963v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.01963v3-abstract-full" style="display: none;"> The significance of mass spectrometry lies in its unparalleled ability to accurately identify and quantify molecules in complex samples, providing invaluable insights into molecular structures and interactions. Here, we leverage diamond nanostructures as highly sensitive mass sensors by utilizing a self-excitation mechanism under an electron beam in a conventional scanning electron microscope (SEM). The diamond molecular balance (DMB) exhibits an exceptional mass resolution of 0.36 MDa, based on its outstanding mechanical quality factor and frequency stability, along with an extensive dynamic range from MDa to TDa. This positions the DMB at the forefront of molecular balances operating at room temperature. Notably, the DMB demonstrates its ability to measure the mass of a single bacteriophage T4 by precisely locating the analyte on the device. These findings highlight the groundbreaking potential of the DMB as a revolutionary tool for mass spectrometry at room temperature. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.01963v3-abstract-full').style.display = 'none'; document.getElementById('2406.01963v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 4 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.01483">arXiv:2406.01483</a> <span> [<a href="https://arxiv.org/pdf/2406.01483">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> </div> </div> <p class="title is-5 mathjax"> Influence of spectra sewing on XCT measurement </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Arikkat%2C+A+J">A. J. Arikkat</a>, <a href="/search/physics?searchtype=author&query=Janulewicz%2C+K+A">K. A. Janulewicz</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+M">C. M. Kim</a>, <a href="/search/physics?searchtype=author&query=Wachulak%2C+P">P. Wachulak</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2406.01483v1-abstract-short" style="display: inline;"> The paper presents an analysis of the possible spectra manipulation and its consequence for the specific application of XCT. The focus was on the modification of the registered spectra dominantly by the sewing/stitching method. A model spectrum was created to analyse the possible behaviour of the spectral components when specifically arranged. The model and processing of real experimental data rev… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.01483v1-abstract-full').style.display = 'inline'; document.getElementById('2406.01483v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.01483v1-abstract-full" style="display: none;"> The paper presents an analysis of the possible spectra manipulation and its consequence for the specific application of XCT. The focus was on the modification of the registered spectra dominantly by the sewing/stitching method. A model spectrum was created to analyse the possible behaviour of the spectral components when specifically arranged. The model and processing of real experimental data revealed that careful spectral sewing can be a very useful procedure and typically leads to improvement of the results obtained with the XCT technique. The results recommended also cautiousness in the choice of the applied modification and scale. In some cases gain or spectral enhancement of a part of the spectrum can be considered also as a sort of sewing, and improve the XCT results. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.01483v1-abstract-full').style.display = 'none'; document.getElementById('2406.01483v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">9 pages, 5 figures, 19 references</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.00267">arXiv:2406.00267</a> <span> [<a href="https://arxiv.org/pdf/2406.00267">pdf</a>, <a href="https://arxiv.org/ps/2406.00267">ps</a>, <a href="https://arxiv.org/format/2406.00267">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Chemical Physics">physics.chem-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1063/5.0202862">10.1063/5.0202862 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> General Framework for Quantifying Dissipation Pathways in Open Quantum Systems. II. Numerical Validation and the Role of Non-Markovianity </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kim%2C+C+W">Chang Woo Kim</a>, <a href="/search/physics?searchtype=author&query=Franco%2C+I">Ignacio Franco</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2406.00267v2-abstract-short" style="display: inline;"> In the previous paper [C. W. Kim and I. Franco, J. Chem. Phys. 160, 214111 (2024)], we developed a theory called MQME-D, which allows us to decompose the overall energy dissipation process in open quantum system dynamics into contributions by individual components of the bath when the subsystem dynamics is governed by a Markovian quantum master equation (MQME). Here, we contrast the predictions of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.00267v2-abstract-full').style.display = 'inline'; document.getElementById('2406.00267v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.00267v2-abstract-full" style="display: none;"> In the previous paper [C. W. Kim and I. Franco, J. Chem. Phys. 160, 214111 (2024)], we developed a theory called MQME-D, which allows us to decompose the overall energy dissipation process in open quantum system dynamics into contributions by individual components of the bath when the subsystem dynamics is governed by a Markovian quantum master equation (MQME). Here, we contrast the predictions of MQME-D against the numerically exact results obtained by combining hierarchical equations of motion (HEOM) with a recently reported protocol for monitoring the statistics of the bath. Overall, MQME-D accurately captures the contributions of specific bath components to the overall dissipation while greatly reducing the computational cost as compared to exact computations using HEOM. The computations show that MQME-D exhibits errors originating from its inherent Markov approximation. We demonstrate that its accuracy can be significantly increased by incorporating non-Markovianity by exploiting time scale separations (TSS) in different components of the bath. Our work demonstrates that MQME-D combined with TSS can be reliably used to understanding how energy is dissipated in realistic open quantum system dynamics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.00267v2-abstract-full').style.display = 'none'; document.getElementById('2406.00267v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. Chem. Phys. 160, 214112 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2404.13759">arXiv:2404.13759</a> <span> [<a href="https://arxiv.org/pdf/2404.13759">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> </div> </div> <p class="title is-5 mathjax"> Mapping Phonon Polaritons with Visible Light </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Arledge%2C+K+E">Kiernan E. Arledge</a>, <a href="/search/physics?searchtype=author&query=Ellis%2C+C+T">Chase T. Ellis</a>, <a href="/search/physics?searchtype=author&query=Sarabi%2C+N+R">Nazli Rasouli Sarabi</a>, <a href="/search/physics?searchtype=author&query=Whiteside%2C+V+R">Vincent R. Whiteside</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+S">Chul Soo Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+M">Mijin Kim</a>, <a href="/search/physics?searchtype=author&query=Ratchford%2C+D+C">Daniel C. Ratchford</a>, <a href="/search/physics?searchtype=author&query=Meeker%2C+M+A">Michael A Meeker</a>, <a href="/search/physics?searchtype=author&query=Weng%2C+B">Binbin Weng</a>, <a href="/search/physics?searchtype=author&query=Tischler%2C+J+G">Joseph G. Tischler</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2404.13759v1-abstract-short" style="display: inline;"> Phonon polaritons (PhPs) are hybrid photon-phonon waves which enable strong light-matter interactions and subdiffractional confinement, potentially empowering applications in sensing, nonlinear optics and nanoscale energy manipulation. In this work, we use confocal Raman microscopy to investigate the coupling between bulk phonon modes and localized surface phonon polariton (SPhP) modes in indium p… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.13759v1-abstract-full').style.display = 'inline'; document.getElementById('2404.13759v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2404.13759v1-abstract-full" style="display: none;"> Phonon polaritons (PhPs) are hybrid photon-phonon waves which enable strong light-matter interactions and subdiffractional confinement, potentially empowering applications in sensing, nonlinear optics and nanoscale energy manipulation. In this work, we use confocal Raman microscopy to investigate the coupling between bulk phonon modes and localized surface phonon polariton (SPhP) modes in indium phosphide (InP) nanopillars and 4H-silicon carbide (4H-SiC) gratings. The Raman intensity within the nanostructures is described in terms of the SPhP eigenmodes and used to reconstruct the field intensity, providing a method to map SPhP eigenmodes using visible and near-IR light. Our results indicate that, contrary to expectation, all Raman-active bulk phonon modes of InP and 4H-SiC couple to the localized SPhP modes. Further, we confirm that polarizability selection rules form the predominant coupling mechanism between phonons and SPhP modes, with electron-phonon coupling playing a role for certain phonon modes (A1(LO) and E1(TO) in 4H-SiC). These observations provide a method for extending Raman studies of PhP modes to achieve full 3D reconstruction of the PhP eigenmodes and visualize light-matter interactions within nanostructures, thus advancing Raman scattering as a technique for understanding PhP modes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.13759v1-abstract-full').style.display = 'none'; document.getElementById('2404.13759v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2404.06671">arXiv:2404.06671</a> <span> [<a href="https://arxiv.org/pdf/2404.06671">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> </div> </div> <p class="title is-5 mathjax"> Simple arithmetic operation in latent space can generate a novel three dimensional graph metamaterials </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kim%2C+N">Namjung Kim</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+D">Dongseok Lee</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Chanyoung Kim</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+D">Dosung Lee</a>, <a href="/search/physics?searchtype=author&query=Hong%2C+Y">Youngjoon Hong</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2404.06671v2-abstract-short" style="display: inline;"> Recent advancements in artificial intelligence (AI)-based design strategies for metamaterials have revolutionized the creation of customizable architectures spanning nano- to macro-scale dimensions, achieving unprecedented mechanical behaviors that surpass the inherent properties of the constituent materials. However, the growing complexity of these methods poses challenges in generating diverse m… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.06671v2-abstract-full').style.display = 'inline'; document.getElementById('2404.06671v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2404.06671v2-abstract-full" style="display: none;"> Recent advancements in artificial intelligence (AI)-based design strategies for metamaterials have revolutionized the creation of customizable architectures spanning nano- to macro-scale dimensions, achieving unprecedented mechanical behaviors that surpass the inherent properties of the constituent materials. However, the growing complexity of these methods poses challenges in generating diverse metamaterials without substantial human and computational resources, hindering widespread adoption. Addressing this, our study introduces an innovative design strategy capable of generating various three-dimensional graph metamaterials using simple arithmetic operations within the latent space. By seamlessly integrating hidden representations of disentangled latent space and latent diffusion processes, our approach provides a comprehensive understanding of complex design spaces, generating diverse graph metamaterials through arithmetic operations. This methodology stands as a versatile tool for creating structures ranging from repetitive lattice structures to functionally graded mechanical metamaterials. It also serves as an inverse design strategy for diverse lattice structures, including crystalline structures and those made of trabecular bone. We believe that this methodology represents a foundational step in advancing our comprehension of the intricate latent design space, offering the potential to establish a unified model for various traditional generative models in the realm of mechanical metamaterials. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.06671v2-abstract-full').style.display = 'none'; document.getElementById('2404.06671v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2403.11394">arXiv:2403.11394</a> <span> [<a href="https://arxiv.org/pdf/2403.11394">pdf</a>, <a href="https://arxiv.org/format/2403.11394">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Physics and Society">physics.soc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Theory">hep-th</span> </div> </div> <p class="title is-5 mathjax"> Spontaneous Symmetry Breaking and Panic Escape </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kim%2C+C+S">C. S. Kim</a>, <a href="/search/physics?searchtype=author&query=Dib%2C+C">Claudio Dib</a>, <a href="/search/physics?searchtype=author&query=Oh%2C+S">Sechul Oh</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2403.11394v2-abstract-short" style="display: inline;"> Panic-induced herding in individuals often leads to social disasters, resulting in people being trapped and trampled in crowd stampedes triggered by panic. We introduce a novel approach that offers fresh insights into studying the phenomenon of asymmetrical panic-induced escape. Our approach is based on the concept of Spontaneous Symmetry Breaking (SSB), a fundamental governing mechanism in the Ph… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.11394v2-abstract-full').style.display = 'inline'; document.getElementById('2403.11394v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2403.11394v2-abstract-full" style="display: none;"> Panic-induced herding in individuals often leads to social disasters, resulting in people being trapped and trampled in crowd stampedes triggered by panic. We introduce a novel approach that offers fresh insights into studying the phenomenon of asymmetrical panic-induced escape. Our approach is based on the concept of Spontaneous Symmetry Breaking (SSB), a fundamental governing mechanism in the Physical Sciences. By applying the principles of SSB, we elucidate how asymmetrical panic-induced herding in individuals occurs. We highlight that understanding panic escape and preventing catastrophic situations can be achieved through two crucial parameters: "population density" control and "communication (or information transfer)" among individuals in a crowd. The interplay of these two parameters is responsible for either breaking or restoring the symmetry of a system. We describe how these parameters are set by design conditions as well as crowd control. Based on these parameters, we discuss strategies for preventing potential social disasters caused by asymmetrical panic escape. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.11394v2-abstract-full').style.display = 'none'; document.getElementById('2403.11394v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">24 pages, 6 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2403.09099">arXiv:2403.09099</a> <span> [<a href="https://arxiv.org/pdf/2403.09099">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1021/acs.nanolett.4c05594">10.1021/acs.nanolett.4c05594 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Room temperature quantum emitters in van der Waals 伪-MoO3 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Lee%2C+J">Jeonghan Lee</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+H">Haiyuan Wang</a>, <a href="/search/physics?searchtype=author&query=Park%2C+K">Keun-Yeol Park</a>, <a href="/search/physics?searchtype=author&query=Huh%2C+S">Soonsang Huh</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+D">Donghan Kim</a>, <a href="/search/physics?searchtype=author&query=Yu%2C+M">Mihyang Yu</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Changyoung Kim</a>, <a href="/search/physics?searchtype=author&query=Thygesen%2C+K+S">Kristian Sommer Thygesen</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+J">Jieun Lee</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2403.09099v2-abstract-short" style="display: inline;"> Quantum emitters in solid-state materials are highly promising building blocks for quantum information processing and communication science. Recently, single-photon emission from van der Waals materials has been reported in transition metal dichalcogenides and hexagonal boron nitride, exhibiting the potential to realize photonic quantum technologies in two-dimensional materials. Here, we report th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.09099v2-abstract-full').style.display = 'inline'; document.getElementById('2403.09099v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2403.09099v2-abstract-full" style="display: none;"> Quantum emitters in solid-state materials are highly promising building blocks for quantum information processing and communication science. Recently, single-photon emission from van der Waals materials has been reported in transition metal dichalcogenides and hexagonal boron nitride, exhibiting the potential to realize photonic quantum technologies in two-dimensional materials. Here, we report the generation of room temperature single-photon emission from exfoliated and thermally annealed single crystals of van der Waals 伪-MoO3. The second-order correlation function measurement displays a clear photon antibunching, while the luminescence intensity exceeds 0.4 Mcts/s and remains stable under laser excitation. The theoretical calculation suggests that an oxygen vacancy defect is a possible candidate for the observed emitters. Together with photostability and brightness, quantum emitters in 伪-MoO3 provide a new avenue to realize photon-based quantum information science in van der Waals materials. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.09099v2-abstract-full').style.display = 'none'; document.getElementById('2403.09099v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">20 pages, 4 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2402.13262">arXiv:2402.13262</a> <span> [<a href="https://arxiv.org/pdf/2402.13262">pdf</a>, <a href="https://arxiv.org/format/2402.13262">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> </div> </div> <p class="title is-5 mathjax"> Development of crystal optics for Multi-Projection X-ray Imaging for synchrotron and XFEL sources </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bellucci%2C+V">Valerio Bellucci</a>, <a href="/search/physics?searchtype=author&query=Birnsteinova%2C+S">Sarlota Birnsteinova</a>, <a href="/search/physics?searchtype=author&query=Sato%2C+T">Tokushi Sato</a>, <a href="/search/physics?searchtype=author&query=Letrun%2C+R">Romain Letrun</a>, <a href="/search/physics?searchtype=author&query=Koliyadu%2C+J+C+P">Jayanath C. P. Koliyadu</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Chan Kim</a>, <a href="/search/physics?searchtype=author&query=Giovanetti%2C+G">Gabriele Giovanetti</a>, <a href="/search/physics?searchtype=author&query=Deiter%2C+C">Carsten Deiter</a>, <a href="/search/physics?searchtype=author&query=Samoylova%2C+L">Liubov Samoylova</a>, <a href="/search/physics?searchtype=author&query=Petrov%2C+I">Ilia Petrov</a>, <a href="/search/physics?searchtype=author&query=Morillo%2C+L+L">Luis Lopez Morillo</a>, <a href="/search/physics?searchtype=author&query=Graceffa%2C+R">Rita Graceffa</a>, <a href="/search/physics?searchtype=author&query=Adriano%2C+L">Luigi Adriano</a>, <a href="/search/physics?searchtype=author&query=Huelsen%2C+H">Helge Huelsen</a>, <a href="/search/physics?searchtype=author&query=Kollmann%2C+H">Heiko Kollmann</a>, <a href="/search/physics?searchtype=author&query=Calliste%2C+T+N+T">Thu Nhi Tran Calliste</a>, <a href="/search/physics?searchtype=author&query=Korytar%2C+D">Dusan Korytar</a>, <a href="/search/physics?searchtype=author&query=Zaprazny%2C+Z">Zdenko Zaprazny</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">Andrea Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">Marco Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Asimakopoulou%2C+E+M">Eleni Myrto Asimakopoulou</a>, <a href="/search/physics?searchtype=author&query=Yao%2C+Z">Zisheng Yao</a>, <a href="/search/physics?searchtype=author&query=Zhang%2C+Y">Yuhe Zhang</a>, <a href="/search/physics?searchtype=author&query=Ulicny%2C+J">Jozef Ulicny</a>, <a href="/search/physics?searchtype=author&query=Meents%2C+A">Alke Meents</a> , et al. (5 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2402.13262v1-abstract-short" style="display: inline;"> X-ray Multi-Projection Imaging (XMPI) is an emerging technology that allows for the acquisition of millions of 3D images per second in samples opaque to visible light. This breakthrough capability enables volumetric observation of fast stochastic phenomena, which were inaccessible due to the lack of a volumetric X-ray imaging probe with kHz to MHz repetition rate. These include phenomena of indust… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.13262v1-abstract-full').style.display = 'inline'; document.getElementById('2402.13262v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.13262v1-abstract-full" style="display: none;"> X-ray Multi-Projection Imaging (XMPI) is an emerging technology that allows for the acquisition of millions of 3D images per second in samples opaque to visible light. This breakthrough capability enables volumetric observation of fast stochastic phenomena, which were inaccessible due to the lack of a volumetric X-ray imaging probe with kHz to MHz repetition rate. These include phenomena of industrial and societal relevance such as fractures in solids, propagation of shock waves, laser-based 3D printing, or even fast processes in the biological domain. Indeed, the speed of traditional tomography is limited by the shear forces caused by rotation, to a maximum of 1000 Hz in state-of-the-art tomography. Moreover, the shear forces can disturb the phenomena in observation, in particular with soft samples or sensitive phenomena such as fluid dynamics. XMPI is based on splitting an X-ray beam to generate multiple simultaneous views of the sample, therefore eliminating the need for rotation. The achievable performances depend on the characteristics of the X-ray source, the detection system, and the X-ray optics used to generate the multiple views. The increase in power density of the X-ray sources around the world now enables 3D imaging with sampling speeds in the kilohertz range at synchrotrons and megahertz range at X-ray Free-Electron Lasers (XFELs). Fast detection systems are already available, and 2D MHz imaging was already demonstrated at synchrotron and XFEL. In this work, we explore the properties of X-ray splitter optics and XMPI schemes that are compatible with synchrotron insertion devices and XFEL X-ray beams. We describe two possible schemes designed to permit large samples and complex sample environments. Then, we present experimental proof of the feasibility of MHz-rate XMPI at the European XFEL. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.13262v1-abstract-full').style.display = 'none'; document.getElementById('2402.13262v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">47 pages, 17 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2312.03206">arXiv:2312.03206</a> <span> [<a href="https://arxiv.org/pdf/2312.03206">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> </div> </div> <p class="title is-5 mathjax"> Seamless monolithic three-dimensional integration of single-crystalline films by growth </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kim%2C+K+S">Ki Seok Kim</a>, <a href="/search/physics?searchtype=author&query=Seo%2C+S">Seunghwan Seo</a>, <a href="/search/physics?searchtype=author&query=Kwon%2C+J">Junyoung Kwon</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+D">Doyoon Lee</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Changhyun Kim</a>, <a href="/search/physics?searchtype=author&query=Ryu%2C+J">Jung-El Ryu</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+J">Jekyung Kim</a>, <a href="/search/physics?searchtype=author&query=Song%2C+M">Min-Kyu Song</a>, <a href="/search/physics?searchtype=author&query=Suh%2C+J+M">Jun Min Suh</a>, <a href="/search/physics?searchtype=author&query=Jung%2C+H">Hang-Gyo Jung</a>, <a href="/search/physics?searchtype=author&query=Jo%2C+Y">Youhwan Jo</a>, <a href="/search/physics?searchtype=author&query=Ahn%2C+H">Hogeun Ahn</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+S">Sangho Lee</a>, <a href="/search/physics?searchtype=author&query=Cho%2C+K">Kyeongjae Cho</a>, <a href="/search/physics?searchtype=author&query=Jeon%2C+J">Jongwook Jeon</a>, <a href="/search/physics?searchtype=author&query=Seol%2C+M">Minsu Seol</a>, <a href="/search/physics?searchtype=author&query=Park%2C+J">Jin-Hong Park</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+S+W">Sang Won Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+J">Jeehwan Kim</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2312.03206v2-abstract-short" style="display: inline;"> The demand for the three-dimensional (3D) integration of electronic components is on a steady rise. The through-silicon-via (TSV) technique emerges as the only viable method for integrating single-crystalline device components in a 3D format, despite encountering significant processing challenges. While monolithic 3D (M3D) integration schemes show promise, the seamless connection of single-crystal… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.03206v2-abstract-full').style.display = 'inline'; document.getElementById('2312.03206v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2312.03206v2-abstract-full" style="display: none;"> The demand for the three-dimensional (3D) integration of electronic components is on a steady rise. The through-silicon-via (TSV) technique emerges as the only viable method for integrating single-crystalline device components in a 3D format, despite encountering significant processing challenges. While monolithic 3D (M3D) integration schemes show promise, the seamless connection of single-crystalline semiconductors without intervening wafers has yet to be demonstrated. This challenge arises from the inherent difficulty of growing single crystals on amorphous or polycrystalline surfaces post the back-end-of-the-line process at low temperatures to preserve the underlying circuitry. Consequently, a practical growth-based solution for M3D of single crystals remains elusive. Here, we present a method for growing single-crystalline channel materials, specifically composed of transition metal dichalcogenides, on amorphous and polycrystalline surfaces at temperatures lower than 400 掳C. Building on this developed technique, we demonstrate the seamless monolithic integration of vertical single-crystalline logic transistor arrays. This accomplishment leads to the development of unprecedented vertical CMOS arrays, thereby constructing vertical inverters. Ultimately, this achievement sets the stage to pave the way for M3D integration of various electronic and optoelectronic hardware in the form of single crystals. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.03206v2-abstract-full').style.display = 'none'; document.getElementById('2312.03206v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 December, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 December, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.14928">arXiv:2311.14928</a> <span> [<a href="https://arxiv.org/pdf/2311.14928">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Palm-sized, vibration-insensitive and vacuum-free all-fiber-photonic module for 10-14-level stabilization of CW lasers and frequency combs </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Jeon%2C+I">Igju Jeon</a>, <a href="/search/physics?searchtype=author&query=Ahn%2C+C">Changmin Ahn</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Chankyu Kim</a>, <a href="/search/physics?searchtype=author&query=Park%2C+S">Seongmin Park</a>, <a href="/search/physics?searchtype=author&query=Jeon%2C+W">Wonju Jeon</a>, <a href="/search/physics?searchtype=author&query=Duan%2C+L">Lingze Duan</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+J">Jungwon Kim</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2311.14928v1-abstract-short" style="display: inline;"> Compact and robust frequency-stabilized laser sources are critical for a variety of fields that require stable frequency standards, including field spectroscopy, radio astronomy, microwave generation, and geophysical monitoring. In this work, we applied a simple and compact fiber ring-resonator configuration that can stabilize both a continuous-wave laser and a self-referenced optical frequency co… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.14928v1-abstract-full').style.display = 'inline'; document.getElementById('2311.14928v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.14928v1-abstract-full" style="display: none;"> Compact and robust frequency-stabilized laser sources are critical for a variety of fields that require stable frequency standards, including field spectroscopy, radio astronomy, microwave generation, and geophysical monitoring. In this work, we applied a simple and compact fiber ring-resonator configuration that can stabilize both a continuous-wave laser and a self-referenced optical frequency comb to a vibration-insensitive optical fiber delay-line. We could achieve a thermal-noise-limited frequency noise level in the 10 Hz - 1 kHz offset frequency range for both the continuous-wave laser and the optical frequency comb with the minimal frequency instability of 2.7x10-14 at 0.03-s and 2.6x10-14 at 0.01-s averaging time, respectively, in non-vacuum condition. The optical fiber spool, working as a delay reference, is designed to be insensitive to external vibration, with a vibration sensitivity of sub-10-10 [1/g] and volume of 32 mL. Finally, the ring-resonator setup is packaged in a palm-sized aluminum case with 171-mL volume with a vibration-insensitive spool, as well as an even smaller 97-mL-volume case with an ultra-compact 9-mL miniaturized fiber spool. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.14928v1-abstract-full').style.display = 'none'; document.getElementById('2311.14928v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 10 figures. The following article has been accepted by APL Photonics</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.11139">arXiv:2311.11139</a> <span> [<a href="https://arxiv.org/pdf/2311.11139">pdf</a>, <a href="https://arxiv.org/format/2311.11139">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> </div> <p class="title is-5 mathjax"> Investigating the effect of Cu$^{2+}$ sorption in montmorillonite using density functional theory and molecular dynamics simulations </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Pedram%2C+Y">Yalda Pedram</a>, <a href="/search/physics?searchtype=author&query=Zhang%2C+Y">Yaoting Zhang</a>, <a href="/search/physics?searchtype=author&query=Briggs%2C+S">Scott Briggs</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+S">Chang Seok Kim</a>, <a href="/search/physics?searchtype=author&query=Brochard%2C+L">Laurent Brochard</a>, <a href="/search/physics?searchtype=author&query=Kalinichev%2C+A+G">Andrey G. Kalinichev</a>, <a href="/search/physics?searchtype=author&query=B%C3%A9land%2C+L+K">Laurent Karim B茅land</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2311.11139v3-abstract-short" style="display: inline;"> Montmorillonite (MMT) is the main mineral component of bentonite, which is currently proposed as a sealing material in deep geological repositories (DGRs) for used nuclear fuel. In the Canadian program, which will utilize copper-cladded used fuel containers, safety analysis considers the effect of copper corrosion, during which Cu$^{2+}$ ions could potentially be adsorbed by the surrounding MMT. I… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.11139v3-abstract-full').style.display = 'inline'; document.getElementById('2311.11139v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.11139v3-abstract-full" style="display: none;"> Montmorillonite (MMT) is the main mineral component of bentonite, which is currently proposed as a sealing material in deep geological repositories (DGRs) for used nuclear fuel. In the Canadian program, which will utilize copper-cladded used fuel containers, safety analysis considers the effect of copper corrosion, during which Cu$^{2+}$ ions could potentially be adsorbed by the surrounding MMT. In such a scenario, ion exchange between Na$^+$ and Cu$^{2+}$ is expected. In this study, a multiscale approach that combines electronic density functional theory (DFT) and force-field-based molecular dynamics (MD) simulations was employed to study the effect of introducing Cu$^{2+}$ ions to MMT. An extension to the ClayFF force field is parametrized and validated using DFT to model how Cu$^{2+}$ interacts with clay systems. MD simulations were performed to calculate the interaction free energies between MMT platelets containing Cu$^{2+}$ ions (Cu-MMT) and compared them to inter-platelet interaction energies in Na-MMT and Ca-MMT. Our calculations suggest Cu-MMT develops swelling pressures between those of Ca-MMT and Na-MMT. Furthermore, our MD simulations suggest that Cu$^{2+}$ has MMT interlayer mobility that is significantly slower than that of Ca$^{2+}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.11139v3-abstract-full').style.display = 'none'; document.getElementById('2311.11139v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.07103">arXiv:2311.07103</a> <span> [<a href="https://arxiv.org/pdf/2311.07103">pdf</a>, <a href="https://arxiv.org/format/2311.07103">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nimb.2023.05.053">10.1016/j.nimb.2023.05.053 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Particle Identification at VAMOS++ with Machine Learning Techniques </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Cho%2C+Y">Y. Cho</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+Y+H">Y. H. Kim</a>, <a href="/search/physics?searchtype=author&query=Choi%2C+S">S. Choi</a>, <a href="/search/physics?searchtype=author&query=Park%2C+J">J. Park</a>, <a href="/search/physics?searchtype=author&query=Bae%2C+S">S. Bae</a>, <a href="/search/physics?searchtype=author&query=Hahn%2C+K+I">K. I. Hahn</a>, <a href="/search/physics?searchtype=author&query=Son%2C+Y">Y. Son</a>, <a href="/search/physics?searchtype=author&query=Navin%2C+A">A. Navin</a>, <a href="/search/physics?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/physics?searchtype=author&query=Rejmund%2C+M">M. Rejmund</a>, <a href="/search/physics?searchtype=author&query=Ramos%2C+D">D. Ramos</a>, <a href="/search/physics?searchtype=author&query=Ackermann%2C+D">D. Ackermann</a>, <a href="/search/physics?searchtype=author&query=Utepov%2C+A">A. Utepov</a>, <a href="/search/physics?searchtype=author&query=Fourgeres%2C+C">C. Fourgeres</a>, <a href="/search/physics?searchtype=author&query=Thomas%2C+J+C">J. C. Thomas</a>, <a href="/search/physics?searchtype=author&query=Goupil%2C+J">J. Goupil</a>, <a href="/search/physics?searchtype=author&query=Fremont%2C+G">G. Fremont</a>, <a href="/search/physics?searchtype=author&query=de+France%2C+G">G. de France</a>, <a href="/search/physics?searchtype=author&query=Watanabe%2C+Y+X">Y. X. Watanabe</a>, <a href="/search/physics?searchtype=author&query=Hirayama%2C+Y">Y. Hirayama</a>, <a href="/search/physics?searchtype=author&query=Jeong%2C+S">S. Jeong</a>, <a href="/search/physics?searchtype=author&query=Niwase%2C+T">T. Niwase</a>, <a href="/search/physics?searchtype=author&query=Miyatake%2C+H">H. Miyatake</a>, <a href="/search/physics?searchtype=author&query=Schury%2C+P">P. Schury</a>, <a href="/search/physics?searchtype=author&query=Rosenbusch%2C+M">M. Rosenbusch</a> , et al. (23 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2311.07103v2-abstract-short" style="display: inline;"> Multi-nucleon transfer reaction between 136Xe beam and 198Pt target was performed using the VAMOS++ spectrometer at GANIL to study the structure of n-rich nuclei around N=126. Unambiguous charge state identification was obtained by combining two supervised machine learning methods, deep neural network (DNN) and positional correction using a gradient-boosting decision tree (GBDT). The new method re… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.07103v2-abstract-full').style.display = 'inline'; document.getElementById('2311.07103v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.07103v2-abstract-full" style="display: none;"> Multi-nucleon transfer reaction between 136Xe beam and 198Pt target was performed using the VAMOS++ spectrometer at GANIL to study the structure of n-rich nuclei around N=126. Unambiguous charge state identification was obtained by combining two supervised machine learning methods, deep neural network (DNN) and positional correction using a gradient-boosting decision tree (GBDT). The new method reduced the complexity of the kinetic energy calibration and outperformed the conventional method, improving the charge state resolution by 8% <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.07103v2-abstract-full').style.display = 'none'; document.getElementById('2311.07103v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Volume 541, August 2023, Pages 240-242 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2310.13176">arXiv:2310.13176</a> <span> [<a href="https://arxiv.org/pdf/2310.13176">pdf</a>, <a href="https://arxiv.org/format/2310.13176">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Plasma Physics">physics.plasm-ph</span> </div> </div> <p class="title is-5 mathjax"> ITER-IA 3D MHD Simulations of Shattered Pellet Injection(SPI)- D1.1 Optimization of the SPI model </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kim%2C+C+C">Charlson. C. Kim</a>, <a href="/search/physics?searchtype=author&query=Lyons%2C+B+C">B. C. Lyons</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+Y+Q">Y. Q. Liu</a>, <a href="/search/physics?searchtype=author&query=McClenaghan%2C+J+T">J. T. McClenaghan</a>, <a href="/search/physics?searchtype=author&query=Parks%2C+P+B">P. B. Parks</a>, <a href="/search/physics?searchtype=author&query=Lao%2C+L+L">L. L. Lao</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2310.13176v1-abstract-short" style="display: inline;"> This report is in partial fulfillment of deliverable D1.1 Optimization of the SPI model and summarizes axisymmetric ITER SPI parameter scans performed by the NIMROD code for several ITER equilibria. These axisymmetric parameter scans are to assess the sensitivity of various injection parameters in preparation for 3D MHD SPI simulations. The scans are comprised of 5 scenarios: S1 - fragment size sc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.13176v1-abstract-full').style.display = 'inline'; document.getElementById('2310.13176v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.13176v1-abstract-full" style="display: none;"> This report is in partial fulfillment of deliverable D1.1 Optimization of the SPI model and summarizes axisymmetric ITER SPI parameter scans performed by the NIMROD code for several ITER equilibria. These axisymmetric parameter scans are to assess the sensitivity of various injection parameters in preparation for 3D MHD SPI simulations. The scans are comprised of 5 scenarios: S1 - fragment size scan : 3 uniform pencil beam, 1 distributed size pencil beam S2 - velocity scan : v = [250,500,750]m/s S3 - velocity dispersion scan : dv/v = [0.2,0.4] (linear distribution) S4 - poloidal extent of plume : [15' ,45' ] (linear distribution) (dv/v=0.2) S5 - poloidal injection angle : +/-[20' ,45' ] (dv/v=0.2) These scans are performed with several ITER equilibria representative of the operating range, from low current and thermal energy (H123 5MA, 29MJ Hydrogen H-mode) to high current and high thermal energy (DT24 15MA, 370MJ D-T H-mode). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.13176v1-abstract-full').style.display = 'none'; document.getElementById('2310.13176v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">in partial fulfillment of ITER Agreement Ref: IO/IA/20/4300002130 to the Agreement on Scientific Cooperation Ref: LGA-2019-A-73</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2310.13172">arXiv:2310.13172</a> <span> [<a href="https://arxiv.org/pdf/2310.13172">pdf</a>, <a href="https://arxiv.org/format/2310.13172">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Plasma Physics">physics.plasm-ph</span> </div> </div> <p class="title is-5 mathjax"> ITER-IA 3D MHD Simulations of Shattered Pellet Injection(SPI) -- D1.3 Code Validation (DIII-D) </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kim%2C+C+C">Charlson. C. Kim</a>, <a href="/search/physics?searchtype=author&query=Bechtel%2C+T">T. Bechtel</a>, <a href="/search/physics?searchtype=author&query=Herfindal%2C+J+L">J. L. Herfindal</a>, <a href="/search/physics?searchtype=author&query=Lyons%2C+B+C">B. C. Lyons</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+Y+Q">Y. Q. Liu</a>, <a href="/search/physics?searchtype=author&query=Parks%2C+P+B">P. B. Parks</a>, <a href="/search/physics?searchtype=author&query=Lao%2C+L">L. Lao</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2310.13172v1-abstract-short" style="display: inline;"> This report is in partial fulfillment of deliverable D1.3 Code Validation (DIII-D). These simulations focus on thermal quench phase of the SPI mitigation and are not typically carried beyond it to the current spike and subsequent current quench. NIMROD SPI simulations[1] are validated against DIII-D experiments. The target plasma for these simulations is DIII-D 160606@02990ms. </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.13172v1-abstract-full" style="display: none;"> This report is in partial fulfillment of deliverable D1.3 Code Validation (DIII-D). These simulations focus on thermal quench phase of the SPI mitigation and are not typically carried beyond it to the current spike and subsequent current quench. NIMROD SPI simulations[1] are validated against DIII-D experiments. The target plasma for these simulations is DIII-D 160606@02990ms. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.13172v1-abstract-full').style.display = 'none'; document.getElementById('2310.13172v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">in partial fulfillment of ITER Agreement Ref: IO/IA/20/4300002130 to the Agreement on Scientific Cooperation Ref: LGA-2019-A-73</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2309.08012">arXiv:2309.08012</a> <span> [<a href="https://arxiv.org/pdf/2309.08012">pdf</a>, <a href="https://arxiv.org/format/2309.08012">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> </div> </div> <p class="title is-5 mathjax"> HUVECs-encapsulation via Millimeter-sized Alginate Droplets </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Tran%2C+K">Khanh Tran</a>, <a href="/search/physics?searchtype=author&query=Ametepe%2C+B+A+A+B">Brenda A. A. B. Ametepe</a>, <a href="/search/physics?searchtype=author&query=Gomez%2C+E+L">Erika L. Gomez</a>, <a href="/search/physics?searchtype=author&query=Ramos%2C+D">Daniel Ramos</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Clare Kim</a>, <a href="/search/physics?searchtype=author&query=Suh%2C+G+K">Ga-Young Kelly Suh</a>, <a href="/search/physics?searchtype=author&query=Ahrar%2C+S">Siavash Ahrar</a>, <a href="/search/physics?searchtype=author&query=Ayala%2C+P">Perla Ayala</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2309.08012v1-abstract-short" style="display: inline;"> Droplet microfluidics are a powerful approach for hydrogel cell encapsulations. Much of the field has focused on single-cell encapsulations with pico-nanoliter droplet volumes necessary for single-cell sequencing or high-throughput screening. These small volumes, however, limit the use of hydrogel droplets for tissue engineering or cell therapies. We describe simple droplet microfluidics to genera… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.08012v1-abstract-full').style.display = 'inline'; document.getElementById('2309.08012v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2309.08012v1-abstract-full" style="display: none;"> Droplet microfluidics are a powerful approach for hydrogel cell encapsulations. Much of the field has focused on single-cell encapsulations with pico-nanoliter droplet volumes necessary for single-cell sequencing or high-throughput screening. These small volumes, however, limit the use of hydrogel droplets for tissue engineering or cell therapies. We describe simple droplet microfluidics to generate millimeter-sized alginate droplets and demonstrate their use for cell encapsulations. This effort builds on our recent efforts, specifically by replacing the glass slide forming the bottom layer of the chamber with a more hydrophobic acrylic (PMMA) layer to improve the alginate-in-oil droplet formation. Using glass layer and PMMA layer devices, we characterized the tunable production of water-in-oil droplets (average droplet lengths ranged from 0.8 to 3.7 mm). Next, PMMA layer devices were used to demonstrate the tunable generation of alginate-in-oil droplets (average droplet lengths ranged from 3-6 mm). Increasing the flow ratio (Q.ratio = Q.oil/Q.alginate) led to more uniform droplets as measured by the coefficient of variance, which was approximately 5%. Finally, a proof-of-use experiment used HUVEC-encapsulated alginate droplets as part of a scratch-healing assay. Specifically, HUVEC-encapsulated droplets (AH droplets) led to the recovery of 3T3 fibroblast monolayers compared to no droplets or cell-free droplets (A droplets). Our results extended the use of simple microfluidics to generate and retrieve millimeter-sized alginate droplets for effective cell encapsulations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.08012v1-abstract-full').style.display = 'none'; document.getElementById('2309.08012v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 6 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2309.07152">arXiv:2309.07152</a> <span> [<a href="https://arxiv.org/pdf/2309.07152">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Signal Processing">eess.SP</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Medical Physics">physics.med-ph</span> </div> </div> <p class="title is-5 mathjax"> Novel Smart N95 Filtering Facepiece Respirator with Real-time Adaptive Fit Functionality and Wireless Humidity Monitoring for Enhanced Wearable Comfort </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kwon%2C+K">Kangkyu Kwon</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+Y+J">Yoon Jae Lee</a>, <a href="/search/physics?searchtype=author&query=Jung%2C+Y">Yeongju Jung</a>, <a href="/search/physics?searchtype=author&query=Soltis%2C+I">Ira Soltis</a>, <a href="/search/physics?searchtype=author&query=Choi%2C+C">Chanyeong Choi</a>, <a href="/search/physics?searchtype=author&query=Na%2C+Y">Yewon Na</a>, <a href="/search/physics?searchtype=author&query=Romero%2C+L">Lissette Romero</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+M+C">Myung Chul Kim</a>, <a href="/search/physics?searchtype=author&query=Rodeheaver%2C+N">Nathan Rodeheaver</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+H">Hodam Kim</a>, <a href="/search/physics?searchtype=author&query=Lloyd%2C+M+S">Michael S. Lloyd</a>, <a href="/search/physics?searchtype=author&query=Zhuang%2C+Z">Ziqing Zhuang</a>, <a href="/search/physics?searchtype=author&query=King%2C+W">William King</a>, <a href="/search/physics?searchtype=author&query=Xu%2C+S">Susan Xu</a>, <a href="/search/physics?searchtype=author&query=Ko%2C+S">Seung-Hwan Ko</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+J">Jinwoo Lee</a>, <a href="/search/physics?searchtype=author&query=Yeo%2C+W">Woon-Hong Yeo</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2309.07152v1-abstract-short" style="display: inline;"> The widespread emergence of the COVID-19 pandemic has transformed our lifestyle, and facial respirators have become an essential part of daily life. Nevertheless, the current respirators possess several limitations such as poor respirator fit because they are incapable of covering diverse human facial sizes and shapes, potentially diminishing the effect of wearing respirators. In addition, the cur… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.07152v1-abstract-full').style.display = 'inline'; document.getElementById('2309.07152v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2309.07152v1-abstract-full" style="display: none;"> The widespread emergence of the COVID-19 pandemic has transformed our lifestyle, and facial respirators have become an essential part of daily life. Nevertheless, the current respirators possess several limitations such as poor respirator fit because they are incapable of covering diverse human facial sizes and shapes, potentially diminishing the effect of wearing respirators. In addition, the current facial respirators do not inform the user of the air quality within the smart facepiece respirator in case of continuous long-term use. Here, we demonstrate the novel smart N-95 filtering facepiece respirator that incorporates the humidity sensor and pressure sensory feedback-enabled self-fit adjusting functionality for the effective performance of the facial respirator to prevent the transmission of airborne pathogens. The laser-induced graphene (LIG) constitutes the humidity sensor, and the pressure sensor array based on the dielectric elastomeric sponge monitors the respirator contact on the face of the user, providing the sensory information for a closed-loop feedback mechanism. As a result of the self-fit adjusting mode along with elastomeric lining, the fit factor is increased by 3.20 and 5 times at average and maximum respectively. We expect that the experimental proof-of-concept of this work will offer viable solutions to the current commercial respirators to address the limitations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.07152v1-abstract-full').style.display = 'none'; document.getElementById('2309.07152v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">20 pages, 5 figures, 1 table, submitted for possible publication</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">MSC Class:</span> 92C55 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2309.00349">arXiv:2309.00349</a> <span> [<a href="https://arxiv.org/pdf/2309.00349">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Chemical Physics">physics.chem-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Machine Learning">cs.LG</span> </div> </div> <p class="title is-5 mathjax"> Bespoke Nanoparticle Synthesis and Chemical Knowledge Discovery Via Autonomous Experimentations </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Yoo%2C+H+J">Hyuk Jun Yoo</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+N">Nayeon Kim</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+H">Heeseung Lee</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+D">Daeho Kim</a>, <a href="/search/physics?searchtype=author&query=Ow%2C+L+T+C">Leslie Tiong Ching Ow</a>, <a href="/search/physics?searchtype=author&query=Nam%2C+H">Hyobin Nam</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Chansoo Kim</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+S+Y">Seung Yong Lee</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+K">Kwan-Young Lee</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+D">Donghun Kim</a>, <a href="/search/physics?searchtype=author&query=Han%2C+S+S">Sang Soo Han</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2309.00349v1-abstract-short" style="display: inline;"> The optimization of nanomaterial synthesis using numerous synthetic variables is considered to be extremely laborious task because the conventional combinatorial explorations are prohibitively expensive. In this work, we report an autonomous experimentation platform developed for the bespoke design of nanoparticles (NPs) with targeted optical properties. This platform operates in a closed-loop man… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.00349v1-abstract-full').style.display = 'inline'; document.getElementById('2309.00349v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2309.00349v1-abstract-full" style="display: none;"> The optimization of nanomaterial synthesis using numerous synthetic variables is considered to be extremely laborious task because the conventional combinatorial explorations are prohibitively expensive. In this work, we report an autonomous experimentation platform developed for the bespoke design of nanoparticles (NPs) with targeted optical properties. This platform operates in a closed-loop manner between a batch synthesis module of NPs and a UV- Vis spectroscopy module, based on the feedback of the AI optimization modeling. With silver (Ag) NPs as a representative example, we demonstrate that the Bayesian optimizer implemented with the early stopping criterion can efficiently produce Ag NPs precisely possessing the desired absorption spectra within only 200 iterations (when optimizing among five synthetic reagents). In addition to the outstanding material developmental efficiency, the analysis of synthetic variables further reveals a novel chemistry involving the effects of citrate in Ag NP synthesis. The amount of citrate is a key to controlling the competitions between spherical and plate-shaped NPs and, as a result, affects the shapes of the absorption spectra as well. Our study highlights both capabilities of the platform to enhance search efficiencies and to provide a novel chemical knowledge by analyzing datasets accumulated from the autonomous experimentations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.00349v1-abstract-full').style.display = 'none'; document.getElementById('2309.00349v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2308.15779">arXiv:2308.15779</a> <span> [<a href="https://arxiv.org/pdf/2308.15779">pdf</a>, <a href="https://arxiv.org/format/2308.15779">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> </div> </div> <p class="title is-5 mathjax"> Exploring GaN crystallographic orientation disparity and its origin on bare and partly graphene-covered $m$-plane sapphire substrates </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Lee%2C+H">Hyunkyu Lee</a>, <a href="/search/physics?searchtype=author&query=Jo%2C+H">Hyeonoh Jo</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+J+H">Jae Hun Kim</a>, <a href="/search/physics?searchtype=author&query=Ha%2C+J">Jongwoo Ha</a>, <a href="/search/physics?searchtype=author&query=An%2C+S+Y">Su Young An</a>, <a href="/search/physics?searchtype=author&query=Choi%2C+J">Jaewu Choi</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Chinkyo Kim</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2308.15779v1-abstract-short" style="display: inline;"> The crystallographic orientation of 3D materials grown over 2D material-covered substrates is one of the critical factors in discerning the true growth mechanism among competing possibilities, including remote epitaxy, van der Waals epitaxy, and pinhole-seeded lateral epitaxy also known as thru-hole epitaxy. However, definitive identification demands meticulous investigation to accurately interpre… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.15779v1-abstract-full').style.display = 'inline'; document.getElementById('2308.15779v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2308.15779v1-abstract-full" style="display: none;"> The crystallographic orientation of 3D materials grown over 2D material-covered substrates is one of the critical factors in discerning the true growth mechanism among competing possibilities, including remote epitaxy, van der Waals epitaxy, and pinhole-seeded lateral epitaxy also known as thru-hole epitaxy. However, definitive identification demands meticulous investigation to accurately interpret experimentally observed crystallographic orientations, as misinterpretation can lead to mistaken conclusions regarding the underlying growth mechanism. In this study, we demonstrate that GaN domains exhibit orientation disparities when grown on both bare and partly graphene-covered $m$-plane sapphire substrates. Comprehensive measurements of crystallographic orientation unambiguously reveal that GaN domains adopt (100) and (103) orientations even when grown under identical growth conditions on bare and partly graphene-covered $m$-plane sapphire substrates, respectively. Particularly, high-resolution transmission electron microscopy unequivocally establishes that GaN grown over partly graphene-covered $m$-plane sapphire substrates started to nucleate on the exposed sapphire surface. Our research elucidates that crystallographic orientation disparities can arise even from thru-hole epitaxy, challenging the commonly accepted notion that such disparities cannot be attributed to thru-hole epitaxy when grown under identical growth conditions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.15779v1-abstract-full').style.display = 'none'; document.getElementById('2308.15779v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">15 pages, 5 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2308.07292">arXiv:2308.07292</a> <span> [<a href="https://arxiv.org/pdf/2308.07292">pdf</a>, <a href="https://arxiv.org/format/2308.07292">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.22323/1.444.1163">10.22323/1.444.1163 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Calibration and Physics with ARA Station 1: A Unique Askaryan Radio Array Detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Seikh%2C+M+F+H">M. F. H Seikh</a>, <a href="/search/physics?searchtype=author&query=Besson%2C+D+Z">D. Z. Besson</a>, <a href="/search/physics?searchtype=author&query=Ali%2C+S">S. Ali</a>, <a href="/search/physics?searchtype=author&query=Allison%2C+P">P. Allison</a>, <a href="/search/physics?searchtype=author&query=Archambault%2C+S">S. Archambault</a>, <a href="/search/physics?searchtype=author&query=Beatty%2C+J+J">J. J. Beatty</a>, <a href="/search/physics?searchtype=author&query=Bishop%2C+A">A. Bishop</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+P">P. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+C">Y. C. Chen</a>, <a href="/search/physics?searchtype=author&query=Clark%2C+B+A">B. A. Clark</a>, <a href="/search/physics?searchtype=author&query=Clay%2C+W">W. Clay</a>, <a href="/search/physics?searchtype=author&query=Connolly%2C+A">A. Connolly</a>, <a href="/search/physics?searchtype=author&query=Couberly%2C+K">K. Couberly</a>, <a href="/search/physics?searchtype=author&query=Cremonesi%2C+L">L. Cremonesi</a>, <a href="/search/physics?searchtype=author&query=Cummings%2C+A">A. Cummings</a>, <a href="/search/physics?searchtype=author&query=Dasgupta%2C+P">P. Dasgupta</a>, <a href="/search/physics?searchtype=author&query=Debolt%2C+R">R. Debolt</a>, <a href="/search/physics?searchtype=author&query=De+Kockere%2C+S">S. De Kockere</a>, <a href="/search/physics?searchtype=author&query=de+Vries%2C+K+D">K. D. de Vries</a>, <a href="/search/physics?searchtype=author&query=Deaconu%2C+C">C. Deaconu</a>, <a href="/search/physics?searchtype=author&query=DuVernois%2C+M+A">M. A. DuVernois</a>, <a href="/search/physics?searchtype=author&query=Flaherty%2C+J">J. Flaherty</a>, <a href="/search/physics?searchtype=author&query=Friedman%2C+E">E. Friedman</a>, <a href="/search/physics?searchtype=author&query=Gaior%2C+R">R. Gaior</a>, <a href="/search/physics?searchtype=author&query=Giri%2C+P">P. Giri</a> , et al. (48 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2308.07292v1-abstract-short" style="display: inline;"> The Askaryan Radio Array Station 1 (A1), the first among five autonomous stations deployed for the ARA experiment at the South Pole, is a unique ultra-high energy neutrino (UHEN) detector based on the Askaryan effect that uses Antarctic ice as the detector medium. Its 16 radio antennas (distributed across 4 strings, each with 2 Vertically Polarized (VPol), 2 Horizontally Polarized (HPol) receivers… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.07292v1-abstract-full').style.display = 'inline'; document.getElementById('2308.07292v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2308.07292v1-abstract-full" style="display: none;"> The Askaryan Radio Array Station 1 (A1), the first among five autonomous stations deployed for the ARA experiment at the South Pole, is a unique ultra-high energy neutrino (UHEN) detector based on the Askaryan effect that uses Antarctic ice as the detector medium. Its 16 radio antennas (distributed across 4 strings, each with 2 Vertically Polarized (VPol), 2 Horizontally Polarized (HPol) receivers), and 2 strings of transmitting antennas (calibration pulsers, CPs), each with 1 VPol and 1 HPol channel, are deployed at depths less than 100 m within the shallow firn zone of the 2.8 km thick South Pole (SP) ice. We apply different methods to calibrate its Ice Ray Sampler second generation (IRS2) chip for timing offset and ADC-to-Voltage conversion factors using a known continuous wave input signal to the digitizer, and achieve a precision of sub-nanoseconds. We achieve better calibration for odd, compared to even samples, and also find that the HPols under-perform relative to the VPol channels. Our timing calibrated data is subsequently used to calibrate the ADC-to-Voltage conversion as well as precise antenna locations, as a precursor to vertex reconstruction. The calibrated data will then be analyzed for UHEN signals in the final step of data compression. The ability of A1 to scan the firn region of SP ice sheet will contribute greatly towards a 5-station analysis and will inform the design of the planned IceCube Gen-2 radio array. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.07292v1-abstract-full').style.display = 'none'; document.getElementById('2308.07292v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> PoS ICRC2023 (2023) 1163 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2306.16602">arXiv:2306.16602</a> <span> [<a href="https://arxiv.org/pdf/2306.16602">pdf</a>, <a href="https://arxiv.org/format/2306.16602">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Analysis of PDEs">math.AP</span> </div> </div> <p class="title is-5 mathjax"> An electro-hydrodynamics modeling of droplet actuation on solid surface by surfactant-mediated electro-dewetting </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Chu%2C+W">Weiqi Chu</a>, <a href="/search/physics?searchtype=author&query=Ji%2C+H">Hangjie Ji</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+Q">Qining Wang</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+%22">Chang-jin "CJ'' Kim</a>, <a href="/search/physics?searchtype=author&query=Bertozzi%2C+A+L">Andrea L. Bertozzi</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2306.16602v1-abstract-short" style="display: inline;"> We propose an electro-hydrodynamics model to describe the dynamic evolution of a slender drop containing a dilute ionic surfactant on a naturally wettable surface, with a varying external electric field. This unified model reproduces fundamental microfluidic operations controlled by electrical signals, including dewetting, rewetting, and droplet shifting. In this paper, lubrication theory analysis… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.16602v1-abstract-full').style.display = 'inline'; document.getElementById('2306.16602v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2306.16602v1-abstract-full" style="display: none;"> We propose an electro-hydrodynamics model to describe the dynamic evolution of a slender drop containing a dilute ionic surfactant on a naturally wettable surface, with a varying external electric field. This unified model reproduces fundamental microfluidic operations controlled by electrical signals, including dewetting, rewetting, and droplet shifting. In this paper, lubrication theory analysis and numerical simulations illustrate how to electrically control the wettability of surface via the charged surfactant. Our numerical results show that electric field promotes dewetting by attracting ionic surfactants onto the transition thin-film region and promotes rewetting by attracting them away from the region. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.16602v1-abstract-full').style.display = 'none'; document.getElementById('2306.16602v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 June, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 13 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2306.08574">arXiv:2306.08574</a> <span> [<a href="https://arxiv.org/pdf/2306.08574">pdf</a>, <a href="https://arxiv.org/format/2306.08574">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Chemical Physics">physics.chem-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1073/pnas.2309987120">10.1073/pnas.2309987120 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Mapping Electronic Decoherence Pathways in Molecules </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Gustin%2C+I">Ignacio Gustin</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+W">Chang Woo Kim</a>, <a href="/search/physics?searchtype=author&query=McCamant%2C+D+W">David W. McCamant</a>, <a href="/search/physics?searchtype=author&query=Franco%2C+I">Ignacio Franco</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2306.08574v3-abstract-short" style="display: inline;"> Establishing the fundamental chemical principles that govern molecular electronic quantum decoherence has remained an outstanding challenge. Fundamental questions such as how solvent and intramolecular vibrations or chemical functionalization contribute to the decoherence remain unanswered and are beyond the reach of state-of-the-art theoretical and experimental approaches. Here we address this ch… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.08574v3-abstract-full').style.display = 'inline'; document.getElementById('2306.08574v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2306.08574v3-abstract-full" style="display: none;"> Establishing the fundamental chemical principles that govern molecular electronic quantum decoherence has remained an outstanding challenge. Fundamental questions such as how solvent and intramolecular vibrations or chemical functionalization contribute to the decoherence remain unanswered and are beyond the reach of state-of-the-art theoretical and experimental approaches. Here we address this challenge by developing a strategy to isolate electronic decoherence pathways for molecular chromophores immersed in condensed phase environments that enables elucidating how electronic quantum coherence is lost. For this, we first identify resonance Raman spectroscopy as a general experimental method to reconstruct molecular spectral densities with full chemical complexity at room temperature, in solvent, and for fluorescent and non-fluorescent molecules. We then show how to quantitatively capture the decoherence dynamics from the spectral density and identify decoherence pathways by decomposing the overall coherence loss into contributions due to individual molecular vibrations and solvent modes. We illustrate the utility of the strategy by analyzing the electronic decoherence pathways of the DNA base thymine in water. Its electronic coherences decay in ~ 30 fs. The early-time decoherence is determined by intramolecular vibrations while the overall decay by solvent. Chemical substitution of thymine modulates the decoherence with hydrogen-bond interactions of the thymine ring with water leading to the fastest decoherence. Increasing temperature leads to faster decoherence as it enhances the importance of solvent contributions but leaves the early-time decoherence dynamics intact. The developed strategy opens key opportunities to establish the connection between molecular structure and quantum decoherence as needed to develop chemical strategies to rationally modulate it. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.08574v3-abstract-full').style.display = 'none'; document.getElementById('2306.08574v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 December, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 June, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Main text 8 pages, 6 figures (Figures 5 and 6 have been changed) SI 9 pages, 5 figures, 6 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> PNAS. 120, e2309987120 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2305.15190">arXiv:2305.15190</a> <span> [<a href="https://arxiv.org/pdf/2305.15190">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1021/acsnano.4c11001">10.1021/acsnano.4c11001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Wafer-Scale MgB2 Superconducting Devices </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kim%2C+C">Changsub Kim</a>, <a href="/search/physics?searchtype=author&query=Bell%2C+C">Christina Bell</a>, <a href="/search/physics?searchtype=author&query=Evans%2C+J">Jake Evans</a>, <a href="/search/physics?searchtype=author&query=Greenfield%2C+J">Jonathan Greenfield</a>, <a href="/search/physics?searchtype=author&query=Batson%2C+E">Emma Batson</a>, <a href="/search/physics?searchtype=author&query=Berggren%2C+K">Karl Berggren</a>, <a href="/search/physics?searchtype=author&query=Lewis%2C+N">Nathan Lewis</a>, <a href="/search/physics?searchtype=author&query=Cunnane%2C+D">Daniel Cunnane</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2305.15190v2-abstract-short" style="display: inline;"> Progress in superconducting device and detector technologies over the past decade have realized practical applications in quantum computers, detectors for far-infrared telescopes, and optical communications. Superconducting thin film materials, however, have remained largely unchanged, with aluminum still being the material of choice for superconducting qubits, and niobium compounds for high frequ… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.15190v2-abstract-full').style.display = 'inline'; document.getElementById('2305.15190v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2305.15190v2-abstract-full" style="display: none;"> Progress in superconducting device and detector technologies over the past decade have realized practical applications in quantum computers, detectors for far-infrared telescopes, and optical communications. Superconducting thin film materials, however, have remained largely unchanged, with aluminum still being the material of choice for superconducting qubits, and niobium compounds for high frequency/high kinetic inductance devices. Magnesium diboride ($\mathrm{MgB}_2$), known for its highest transition temperature ($\mathrm{T}_c$ = 39 K) among metallic superconductors, is a viable material for elevated temperature and higher frequency superconducting devices moving towards THz frequencies. However, difficulty in synthesizing wafer-scale thin films have prevented implementation of $\mathrm{MgB}_2$ devices into the application base of superconducting electronics. Here, we report ultra-smooth (< 0.5 nm root-mean-square roughness) and uniform $\mathrm{MgB}_2$ thin (< 100 nm) films over 100 mm in diameter for the first time and present prototype devices fabricated with these films demonstrating key superconducting properties including internal quality factor over $\mathrm{10}^4$ at 4.5 K and high tunable kinetic inductance in the order of tens of pH/sq in a 40 nm film. This groundbreaking advancement will enable development of elevated temperature, high frequency superconducting quantum circuits and devices. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.15190v2-abstract-full').style.display = 'none'; document.getElementById('2305.15190v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 December, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2305.11920">arXiv:2305.11920</a> <span> [<a href="https://arxiv.org/pdf/2305.11920">pdf</a>, <a href="https://arxiv.org/format/2305.11920">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Image and Video Processing">eess.IV</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> </div> </div> <p class="title is-5 mathjax"> Megahertz X-ray Multi-projection imaging </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Villanueva-Perez%2C+P">Pablo Villanueva-Perez</a>, <a href="/search/physics?searchtype=author&query=Bellucci%2C+V">Valerio Bellucci</a>, <a href="/search/physics?searchtype=author&query=Zhang%2C+Y">Yuhe Zhang</a>, <a href="/search/physics?searchtype=author&query=Birnsteinova%2C+S">Sarlota Birnsteinova</a>, <a href="/search/physics?searchtype=author&query=Graceffa%2C+R">Rita Graceffa</a>, <a href="/search/physics?searchtype=author&query=Adriano%2C+L">Luigi Adriano</a>, <a href="/search/physics?searchtype=author&query=Asimakopoulou%2C+E+M">Eleni Myrto Asimakopoulou</a>, <a href="/search/physics?searchtype=author&query=Petrov%2C+I">Ilia Petrov</a>, <a href="/search/physics?searchtype=author&query=Yao%2C+Z">Zisheng Yao</a>, <a href="/search/physics?searchtype=author&query=Romagnoni%2C+M">Marco Romagnoni</a>, <a href="/search/physics?searchtype=author&query=Mazzolari%2C+A">Andrea Mazzolari</a>, <a href="/search/physics?searchtype=author&query=Letrun%2C+R">Romain Letrun</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Chan Kim</a>, <a href="/search/physics?searchtype=author&query=Koliyadu%2C+J+C+P">Jayanath C. P. Koliyadu</a>, <a href="/search/physics?searchtype=author&query=Deiter%2C+C">Carsten Deiter</a>, <a href="/search/physics?searchtype=author&query=Bean%2C+R">Richard Bean</a>, <a href="/search/physics?searchtype=author&query=Giovanetti%2C+G">Gabriele Giovanetti</a>, <a href="/search/physics?searchtype=author&query=Gelisio%2C+L">Luca Gelisio</a>, <a href="/search/physics?searchtype=author&query=Ritschel%2C+T">Tobias Ritschel</a>, <a href="/search/physics?searchtype=author&query=Mancuso%2C+A">Adrian Mancuso</a>, <a href="/search/physics?searchtype=author&query=Chapman%2C+H+N">Henry N. Chapman</a>, <a href="/search/physics?searchtype=author&query=Meents%2C+A">Alke Meents</a>, <a href="/search/physics?searchtype=author&query=Sato%2C+T">Tokushi Sato</a>, <a href="/search/physics?searchtype=author&query=Vagovic%2C+P">Patrik Vagovic</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2305.11920v1-abstract-short" style="display: inline;"> X-ray time-resolved tomography is one of the most popular X-ray techniques to probe dynamics in three dimensions (3D). Recent developments in time-resolved tomography opened the possibility of recording kilohertz-rate 3D movies. However, tomography requires rotating the sample with respect to the X-ray beam, which prevents characterization of faster structural dynamics. Here, we present megahertz… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.11920v1-abstract-full').style.display = 'inline'; document.getElementById('2305.11920v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2305.11920v1-abstract-full" style="display: none;"> X-ray time-resolved tomography is one of the most popular X-ray techniques to probe dynamics in three dimensions (3D). Recent developments in time-resolved tomography opened the possibility of recording kilohertz-rate 3D movies. However, tomography requires rotating the sample with respect to the X-ray beam, which prevents characterization of faster structural dynamics. Here, we present megahertz (MHz) X-ray multi-projection imaging (MHz-XMPI), a technique capable of recording volumetric information at MHz rates and micrometer resolution without scanning the sample. We achieved this by harnessing the unique megahertz pulse structure and intensity of the European X-ray Free-electron Laser with a combination of novel detection and reconstruction approaches that do not require sample rotations. Our approach enables generating multiple X-ray probes that simultaneously record several angular projections for each pulse in the megahertz pulse burst. We provide a proof-of-concept demonstration of the MHz-XMPI technique's capability to probe 4D (3D+time) information on stochastic phenomena and non-reproducible processes three orders of magnitude faster than state-of-the-art time-resolved X-ray tomography, by generating 3D movies of binary droplet collisions. We anticipate that MHz-XMPI will enable in-situ and operando studies that were impossible before, either due to the lack of temporal resolution or because the systems were opaque (such as for MHz imaging based on optical microscopy). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.11920v1-abstract-full').style.display = 'none'; document.getElementById('2305.11920v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2304.14496">arXiv:2304.14496</a> <span> [<a href="https://arxiv.org/pdf/2304.14496">pdf</a>, <a href="https://arxiv.org/ps/2304.14496">ps</a>, <a href="https://arxiv.org/format/2304.14496">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Machine Learning">cs.LG</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Signal Processing">eess.SP</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Restoring Original Signal From Pile-up Signal using Deep Learning </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kim%2C+C+H">C. H. Kim</a>, <a href="/search/physics?searchtype=author&query=Ahn%2C+S">S. Ahn</a>, <a href="/search/physics?searchtype=author&query=Chae%2C+K+Y">K. Y. Chae</a>, <a href="/search/physics?searchtype=author&query=Hooker%2C+J">J. Hooker</a>, <a href="/search/physics?searchtype=author&query=Rogachev%2C+G+V">G. V. Rogachev</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2304.14496v1-abstract-short" style="display: inline;"> Pile-up signals are frequently produced in experimental physics. They create inaccurate physics data with high uncertainty and cause various problems. Therefore, the correction to pile-up signals is crucially required. In this study, we implemented a deep learning method to restore the original signals from the pile-up signals. We showed that a deep learning model could accurately reconstruct the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.14496v1-abstract-full').style.display = 'inline'; document.getElementById('2304.14496v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.14496v1-abstract-full" style="display: none;"> Pile-up signals are frequently produced in experimental physics. They create inaccurate physics data with high uncertainty and cause various problems. Therefore, the correction to pile-up signals is crucially required. In this study, we implemented a deep learning method to restore the original signals from the pile-up signals. We showed that a deep learning model could accurately reconstruct the original signal waveforms from the pile-up waveforms. By substituting the pile-up signals with the original signals predicted by the model, the energy and timing resolutions of the data are notably enhanced. The model implementation significantly improved the quality of the particle identification plot and particle tracks. This method is applicable to similar problems, such as separating multiple signals or correcting pile-up signals with other types of noises and backgrounds. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.14496v1-abstract-full').style.display = 'none'; document.getElementById('2304.14496v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.18043">arXiv:2303.18043</a> <span> [<a href="https://arxiv.org/pdf/2303.18043">pdf</a>, <a href="https://arxiv.org/format/2303.18043">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Data Analysis, Statistics and Probability">physics.data-an</span> </div> </div> <p class="title is-5 mathjax"> Online dynamic flat-field correction for MHz Microscopy data at European XFEL </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Birnsteinova%2C+S">Sarlota Birnsteinova</a>, <a href="/search/physics?searchtype=author&query=de+Lima%2C+D+E+F">Danilo E. Ferreira de Lima</a>, <a href="/search/physics?searchtype=author&query=Sobolev%2C+E">Egor Sobolev</a>, <a href="/search/physics?searchtype=author&query=Kirkwood%2C+H+J">Henry J. Kirkwood</a>, <a href="/search/physics?searchtype=author&query=Bellucci%2C+V">Valerio Bellucci</a>, <a href="/search/physics?searchtype=author&query=Bean%2C+R+J">Richard J. Bean</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Chan Kim</a>, <a href="/search/physics?searchtype=author&query=Koliyadu%2C+J+C+P">Jayanath C. P. Koliyadu</a>, <a href="/search/physics?searchtype=author&query=Sato%2C+T">Tokushi Sato</a>, <a href="/search/physics?searchtype=author&query=Dall%27Antonia%2C+F">Fabio Dall'Antonia</a>, <a href="/search/physics?searchtype=author&query=Asimakopoulou%2C+E+M">Eleni Myrto Asimakopoulou</a>, <a href="/search/physics?searchtype=author&query=Yao%2C+Z">Zisheng Yao</a>, <a href="/search/physics?searchtype=author&query=Buakor%2C+K">Khachiwan Buakor</a>, <a href="/search/physics?searchtype=author&query=Zhang%2C+Y">Yuhe Zhang</a>, <a href="/search/physics?searchtype=author&query=Meents%2C+A">Alke Meents</a>, <a href="/search/physics?searchtype=author&query=Chapman%2C+H+N">Henry N. Chapman</a>, <a href="/search/physics?searchtype=author&query=Mancuso%2C+A+P">Adrian P. Mancuso</a>, <a href="/search/physics?searchtype=author&query=Villanueva-Perez%2C+P">Pablo Villanueva-Perez</a>, <a href="/search/physics?searchtype=author&query=Vagovic%2C+P">Patrik Vagovic</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2303.18043v1-abstract-short" style="display: inline;"> The X-ray microscopy technique at the European X-ray free-electron laser (EuXFEL), operating at a MHz repetition rate, provides superior contrast and spatial-temporal resolution compared to typical microscopy techniques at other X-ray sources. In both online visualization and offline data analysis for microscopy experiments, baseline normalization is essential for further processing steps such as… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.18043v1-abstract-full').style.display = 'inline'; document.getElementById('2303.18043v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.18043v1-abstract-full" style="display: none;"> The X-ray microscopy technique at the European X-ray free-electron laser (EuXFEL), operating at a MHz repetition rate, provides superior contrast and spatial-temporal resolution compared to typical microscopy techniques at other X-ray sources. In both online visualization and offline data analysis for microscopy experiments, baseline normalization is essential for further processing steps such as phase retrieval and modal decomposition. In addition, access to normalized projections during data acquisition can play an important role in decision-making and improve the quality of the data. However, the stochastic nature of XFEL sources hinders the use of existing flat-flied normalization methods during MHz X-ray microscopy experiments. Here, we present an online dynamic flat-field correction method based on principal component analysis of dynamically evolving flat-field images. The method is used for the normalization of individual X-ray projections and has been implemented as an online analysis tool at the Single Particles, Clusters, and Biomolecules and Serial Femtosecond Crystallography (SPB/SFX) instrument of EuXFEL. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.18043v1-abstract-full').style.display = 'none'; document.getElementById('2303.18043v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 31 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">14 pages, 7 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2302.13329">arXiv:2302.13329</a> <span> [<a href="https://arxiv.org/pdf/2302.13329">pdf</a>, <a href="https://arxiv.org/format/2302.13329">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s41598-023-38863-7">10.1038/s41598-023-38863-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Classification of magnetic order from electronic structure by using machine learning </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Jang%2C+Y">Yerin Jang</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+H">Choong H. Kim</a>, <a href="/search/physics?searchtype=author&query=Go%2C+A">Ara Go</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2302.13329v2-abstract-short" style="display: inline;"> Identifying the magnetic state of materials is of great interest in a wide range of applications, but direct identification is not always straightforward due to limitations in neutron scattering experiments. In this work, we present a machine-learning approach using decision-tree algorithms to identify magnetism from the spin-integrated excitation spectrum, such as the density of states. The datas… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.13329v2-abstract-full').style.display = 'inline'; document.getElementById('2302.13329v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2302.13329v2-abstract-full" style="display: none;"> Identifying the magnetic state of materials is of great interest in a wide range of applications, but direct identification is not always straightforward due to limitations in neutron scattering experiments. In this work, we present a machine-learning approach using decision-tree algorithms to identify magnetism from the spin-integrated excitation spectrum, such as the density of states. The dataset was generated by Hartree-Fock mean-field calculations of candidate antiferromagnetic orders on a Wannier Hamiltonian, extracted from first-principle calculations targeting BaOsO$_3$. Our machine learning model was trained using various types of spectral data, including local density of states, momentum-resolved density of states at high-symmetry points, and the lowest excitation energies from the Fermi level. Although the density of states shows good performance for machine learning, the broadening method had a significant impact on the model's performance. We improved the model's performance by designing the excitation energy as a feature for machine learning, resulting in excellent classification of antiferromagnetic order, even for test samples generated by different methods from the training samples used for machine learning. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.13329v2-abstract-full').style.display = 'none'; document.getElementById('2302.13329v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 10 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Scientific Reports 13, 12445 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2302.09936">arXiv:2302.09936</a> <span> [<a href="https://arxiv.org/pdf/2302.09936">pdf</a>, <a href="https://arxiv.org/format/2302.09936">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevApplied.20.014046">10.1103/PhysRevApplied.20.014046 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Optimizing the magnon-phonon cooperativity in planar geometries </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=An%2C+K">K. An</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">C. Kim</a>, <a href="/search/physics?searchtype=author&query=Moon%2C+K+-">K. -W. Moon</a>, <a href="/search/physics?searchtype=author&query=Kohno%2C+R">R. Kohno</a>, <a href="/search/physics?searchtype=author&query=Olivetti%2C+G">G. Olivetti</a>, <a href="/search/physics?searchtype=author&query=de+Loubens%2C+G">G. de Loubens</a>, <a href="/search/physics?searchtype=author&query=Vukadinovic%2C+N">N. Vukadinovic</a>, <a href="/search/physics?searchtype=author&query=Youssef%2C+J+B">J. Ben Youssef</a>, <a href="/search/physics?searchtype=author&query=Hwang%2C+C">C. Hwang</a>, <a href="/search/physics?searchtype=author&query=Klein%2C+O">O. Klein</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2302.09936v2-abstract-short" style="display: inline;"> Optimizing the cooperativity between two distinct particles is an important feature of quantum information processing. Of particular interest is the coupling between spin and phonon, which allows for integrated long range communication between gates operating at GHz frequency. Using local light scattering, we show that, in magnetic planar geometries, this attribute can be tuned by adjusting the or… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.09936v2-abstract-full').style.display = 'inline'; document.getElementById('2302.09936v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2302.09936v2-abstract-full" style="display: none;"> Optimizing the cooperativity between two distinct particles is an important feature of quantum information processing. Of particular interest is the coupling between spin and phonon, which allows for integrated long range communication between gates operating at GHz frequency. Using local light scattering, we show that, in magnetic planar geometries, this attribute can be tuned by adjusting the orientation and strength of an external magnetic field. The coupling strength is enhanced by about a factor of 2 for the out-of-plane magnetized geometry where the Kittel mode is coupled to circularly polarized phonons, compared to the in-plane one where it couples to linearly polarized phonons. We also show that the overlap between magnon and phonon is maximized by matching the Kittel frequency with an acoustic resonance that satisfies the half-wave plate condition across the magnetic film thickness. Taking the frequency dependence of the damping into account, a maximum cooperativity of about 6 is reached in garnets for the normal configuration near 5.5 GHz. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.09936v2-abstract-full').style.display = 'none'; document.getElementById('2302.09936v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 10 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review Applied 20, 014046 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2212.07641">arXiv:2212.07641</a> <span> [<a href="https://arxiv.org/pdf/2212.07641">pdf</a>, <a href="https://arxiv.org/format/2212.07641">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> </div> </div> <p class="title is-5 mathjax"> Integrated Optical Vortex Microcomb </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Chen%2C+B">Bo Chen</a>, <a href="/search/physics?searchtype=author&query=Zhou%2C+Y">Yueguang Zhou</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+Y">Yang Liu</a>, <a href="/search/physics?searchtype=author&query=Ye%2C+C">Chaochao Ye</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+Q">Qian Cao</a>, <a href="/search/physics?searchtype=author&query=Huang%2C+P">Peinian Huang</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Chanju Kim</a>, <a href="/search/physics?searchtype=author&query=Zheng%2C+Y">Yi Zheng</a>, <a href="/search/physics?searchtype=author&query=Oxenl%C3%B8we%2C+L+K">Leif Katsuo Oxenl酶we</a>, <a href="/search/physics?searchtype=author&query=Yvind%2C+K">Kresten Yvind</a>, <a href="/search/physics?searchtype=author&query=Li%2C+J">Jin Li</a>, <a href="/search/physics?searchtype=author&query=Li%2C+J">Jiaqi Li</a>, <a href="/search/physics?searchtype=author&query=Zhang%2C+Y">Yanfeng Zhang</a>, <a href="/search/physics?searchtype=author&query=Dong%2C+C">Chunhua Dong</a>, <a href="/search/physics?searchtype=author&query=Fu%2C+S">Songnian Fu</a>, <a href="/search/physics?searchtype=author&query=Zhan%2C+Q">Qiwen Zhan</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+X">Xuehua Wang</a>, <a href="/search/physics?searchtype=author&query=Pu%2C+M">Minhao Pu</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+J">Jin Liu</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2212.07641v2-abstract-short" style="display: inline;"> The explorations of physical degrees of freedom with infinite dimensionalities, such as orbital angular momentum and frequency of light, have profoundly reshaped the landscape of modern optics with representative photonic functional devices including optical vortex emitters and frequency combs. In nanophotonics, whispering gallery mode microresonators naturally support orbital angular momentum of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.07641v2-abstract-full').style.display = 'inline'; document.getElementById('2212.07641v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2212.07641v2-abstract-full" style="display: none;"> The explorations of physical degrees of freedom with infinite dimensionalities, such as orbital angular momentum and frequency of light, have profoundly reshaped the landscape of modern optics with representative photonic functional devices including optical vortex emitters and frequency combs. In nanophotonics, whispering gallery mode microresonators naturally support orbital angular momentum of light and have been demonstrated as on-chip emitters of monochromatic optical vortices. On the other hand, whispering gallery mode microresonators serve as a highly efficient nonlinear optical platform for producing light at different frequencies - i.e., microcombs. Here, we interlace the optical vortices and microcombs by demonstrating an optical vortex comb on an III-V integrated nonlinear microresonator. The angular-grating-dressed nonlinear microring simultaneously emits spatiotemporal light springs consisting of 50 orbital angular momentum modes that are each spectrally addressed to the frequency components (longitudinal whispering gallery modes) of the generated microcomb. We further experimentally generate optical pulses with time-varying orbital angular momenta by carefully introducing a specific intermodal phase relation to spatiotemporal light springs. This work may immediately boost the development of integrated nonlinear/quantum photonics for exploring fundamental optical physics and advancing photonic quantum technology. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.07641v2-abstract-full').style.display = 'none'; document.getElementById('2212.07641v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 December, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">To appear in Nature Photonics</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.07963">arXiv:2211.07963</a> <span> [<a href="https://arxiv.org/pdf/2211.07963">pdf</a>, <a href="https://arxiv.org/format/2211.07963">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Plasma Physics">physics.plasm-ph</span> </div> </div> <p class="title is-5 mathjax"> High-energy betatron source driven by a 4-PW laser with applications to non-destructive imaging </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Hojbota%2C+C+I">Calin Ioan Hojbota</a>, <a href="/search/physics?searchtype=author&query=Mirzaie%2C+M">Mohammad Mirzaie</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+D+Y">Do Yeon Kim</a>, <a href="/search/physics?searchtype=author&query=Pak%2C+T+G">Tae Gyu Pak</a>, <a href="/search/physics?searchtype=author&query=Rezaei-Pandari%2C+M">Mohammad Rezaei-Pandari</a>, <a href="/search/physics?searchtype=author&query=Pathak%2C+V+B">Vishwa Bandhu Pathak</a>, <a href="/search/physics?searchtype=author&query=Jeon%2C+J+H">Jong Ho Jeon</a>, <a href="/search/physics?searchtype=author&query=Yoon%2C+J+W">Jin Woo Yoon</a>, <a href="/search/physics?searchtype=author&query=Sung%2C+J+H">Jae Hae Sung</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+S+K">Seong Ku Lee</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C+M">Chul Min Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+K+Y">Ki Yong Kim</a>, <a href="/search/physics?searchtype=author&query=Nam%2C+C+H">Chang Hee Nam</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2211.07963v1-abstract-short" style="display: inline;"> Petawatt-class lasers can produce multi-GeV electron beams through laser wakefield electron acceleration. As a by-product, the accelerated electron beams can generate broad synchrotron-like radiation known as betatron radiation. In the present work, we measure the properties of the radiation produced from 2 GeV, 215 pC electron beams, which shows a broad radiation spectrum with a critical energy o… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.07963v1-abstract-full').style.display = 'inline'; document.getElementById('2211.07963v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.07963v1-abstract-full" style="display: none;"> Petawatt-class lasers can produce multi-GeV electron beams through laser wakefield electron acceleration. As a by-product, the accelerated electron beams can generate broad synchrotron-like radiation known as betatron radiation. In the present work, we measure the properties of the radiation produced from 2 GeV, 215 pC electron beams, which shows a broad radiation spectrum with a critical energy of 515 keV, extending up to MeV photon energies and 10 mrad divergence. Due to its high energy and flux, such radiation is an ideal candidate for gamma-ray radiography of dense objects. We employed a compact betatron radiation setup operated at relatively high-repetition rates (0.1 Hz) and used it to scan cm-sized objects: a DRAM circuit, BNC and SMA connectors, a padlock and a gas jet nozzle. GEANT4 simulations were carried out to reproduce the radiograph of the gas jet. The setup and the radiation source can reveal the interior structure of the objects at the sub-mm level, proving that it can further be applied to diagnose cracks or holes in various components. The radiation source presented here is a valuable tool for non-destructive inspection and for applications in high-energy-density physics such as nuclear fusion. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.07963v1-abstract-full').style.display = 'none'; document.getElementById('2211.07963v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">15 pages, 6 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.04949">arXiv:2211.04949</a> <span> [<a href="https://arxiv.org/pdf/2211.04949">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Mesoscale and Nanoscale Physics">cond-mat.mes-hall</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.35848/1882-0786/ac9ddc">10.35848/1882-0786/ac9ddc <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Alternative understanding of the skyrmion Hall effect based on one-dimensional domain wall motion </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Moon%2C+K">Kyoung-Woong Moon</a>, <a href="/search/physics?searchtype=author&query=Yoon%2C+J">Jungbum Yoon</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Changsoo Kim</a>, <a href="/search/physics?searchtype=author&query=Sim%2C+J">Jae-Hun Sim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+S+K">Se Kwon Kim</a>, <a href="/search/physics?searchtype=author&query=Je%2C+S">Soong-Geun Je</a>, <a href="/search/physics?searchtype=author&query=Hwang%2C+C">Chanyong Hwang</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2211.04949v2-abstract-short" style="display: inline;"> A moving magnetic skyrmion exhibits transverse deflection. This so-called skyrmion Hall effect has been explained by the Thiele equation. Here, we provide an alternative interpretation of the skyrmion Hall effect based on the dynamics of domain walls enclosing the skyrmion. We relate the spin-torque-induced local rotation of the domain wall segments to the shift of the skyrmion core, explaining th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.04949v2-abstract-full').style.display = 'inline'; document.getElementById('2211.04949v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.04949v2-abstract-full" style="display: none;"> A moving magnetic skyrmion exhibits transverse deflection. This so-called skyrmion Hall effect has been explained by the Thiele equation. Here, we provide an alternative interpretation of the skyrmion Hall effect based on the dynamics of domain walls enclosing the skyrmion. We relate the spin-torque-induced local rotation of the domain wall segments to the shift of the skyrmion core, explaining the skyrmion Hall effect at the micromagnetic level. Bases on our intuitive interpretation, we also show that the skyrmion Hall effect can be suppressed by combining the spin-transfer and spin-orbit torques, whereby removing the major obstacle to utilizing skyrmions in devices. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.04949v2-abstract-full').style.display = 'none'; document.getElementById('2211.04949v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Appl. Phys. Express 15, 123001 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.02825">arXiv:2211.02825</a> <span> [<a href="https://arxiv.org/pdf/2211.02825">pdf</a>, <a href="https://arxiv.org/format/2211.02825">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/s10909-022-02880-z">10.1007/s10909-022-02880-z <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Status and performance of the AMoRE-I experiment on neutrinoless double beta decay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kim%2C+H+B">H. B. Kim</a>, <a href="/search/physics?searchtype=author&query=Ha%2C+D+H">D. H. Ha</a>, <a href="/search/physics?searchtype=author&query=Jeon%2C+E+J">E. J. Jeon</a>, <a href="/search/physics?searchtype=author&query=Jeon%2C+J+A">J. A. Jeon</a>, <a href="/search/physics?searchtype=author&query=Jo%2C+H+S">H. S. Jo</a>, <a href="/search/physics?searchtype=author&query=Kang%2C+C+S">C. S. Kang</a>, <a href="/search/physics?searchtype=author&query=Kang%2C+W+G">W. G. Kang</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+H+S">H. S. Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+S+C">S. C. Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+S+G">S. G. Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+S+K">S. K. Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+S+R">S. R. Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+W+T">W. T. Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+Y+D">Y. D. Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+Y+H">Y. H. Kim</a>, <a href="/search/physics?searchtype=author&query=Kwon%2C+D+H">D. H. Kwon</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+E+S">E. S. Lee</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+H+J">H. J. Lee</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+H+S">H. S. Lee</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+J+S">J. S. Lee</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+M+H">M. H. Lee</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+S+W">S. W. Lee</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+Y+C">Y. C. Lee</a>, <a href="/search/physics?searchtype=author&query=Leonard%2C+D+S">D. S. Leonard</a>, <a href="/search/physics?searchtype=author&query=Lim%2C+H+S">H. S. Lim</a> , et al. (10 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2211.02825v1-abstract-short" style="display: inline;"> AMoRE is an international project to search for the neutrinoless double beta decay of $^{100}$Mo using a detection technology consisting of magnetic microcalorimeters (MMCs) and molybdenum-based scintillating crystals. Data collection has begun for the current AMORE-I phase of the project, an upgrade from the previous pilot phase. AMoRE-I employs thirteen $^\mathrm{48depl.}$Ca$^{100}$MoO$_4$ cryst… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.02825v1-abstract-full').style.display = 'inline'; document.getElementById('2211.02825v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.02825v1-abstract-full" style="display: none;"> AMoRE is an international project to search for the neutrinoless double beta decay of $^{100}$Mo using a detection technology consisting of magnetic microcalorimeters (MMCs) and molybdenum-based scintillating crystals. Data collection has begun for the current AMORE-I phase of the project, an upgrade from the previous pilot phase. AMoRE-I employs thirteen $^\mathrm{48depl.}$Ca$^{100}$MoO$_4$ crystals and five Li$_2$$^{100}$MoO$_4$ crystals for a total crystal mass of 6.2 kg. Each detector module contains a scintillating crystal with two MMC channels for heat and light detection. We report the present status of the experiment and the performance of the detector modules. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.02825v1-abstract-full').style.display = 'none'; document.getElementById('2211.02825v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 4 figures, published in Journal of Low Temperature Physics (2022)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2210.14519">arXiv:2210.14519</a> <span> [<a href="https://arxiv.org/pdf/2210.14519">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> </div> <p class="title is-5 mathjax"> Probabilistic Prime Factorization based on Virtually Connected Boltzmann Machine and Probabilistic Annealing </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Jung%2C+H">Hyundo Jung</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+H">Hyunjin Kim</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+W">Woojin Lee</a>, <a href="/search/physics?searchtype=author&query=Jeon%2C+J">Jinwoo Jeon</a>, <a href="/search/physics?searchtype=author&query=Choi%2C+Y">Yohan Choi</a>, <a href="/search/physics?searchtype=author&query=Park%2C+T">Taehyeong Park</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Chulwoo Kim</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2210.14519v1-abstract-short" style="display: inline;"> Probabilistic computing has been introduced to operate functional networks using a probabilistic bit (p-bit), generating 0 or 1 probabilistically from its electrical input. In contrast to quantum computers, probabilistic computing enables the operation of adiabatic algorithms even at room temperature, and is expected to broaden computational abilities in non-deterministic polynomial searching and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2210.14519v1-abstract-full').style.display = 'inline'; document.getElementById('2210.14519v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2210.14519v1-abstract-full" style="display: none;"> Probabilistic computing has been introduced to operate functional networks using a probabilistic bit (p-bit), generating 0 or 1 probabilistically from its electrical input. In contrast to quantum computers, probabilistic computing enables the operation of adiabatic algorithms even at room temperature, and is expected to broaden computational abilities in non-deterministic polynomial searching and learning problems. However, previous developments of probabilistic machines have focused on emulating the operation of quantum computers similarly, implementing every p-bit with large weight-sum matrix multiplication blocks or requiring tens of times more p-bits than semiprime bits. Furthermore, previous probabilistic machines adopted the graph model of quantum computers for updating the hardware connections, which further increased the number of sampling operations. Here we introduce a digitally accelerated prime factorization machine with a virtually connected Boltzmann machine and probabilistic annealing method, designed to reduce the complexity and number of sampling operations to below those of previous probabilistic factorization machines. In 10-bit to 64-bit factorizations were performed to assess the effectiveness of the machine, and the machine offers 1.2 X 10^8 times improvement in the number of sampling operations compared with previous factorization machines, with a 22-fold smaller hardware resource. This work shows that probabilistic machines can be implemented in a cost-effective manner using a field-programmable gate array, and hence we suggest that probabilistic computers can be employed for solving various large NP searching problems in the near future. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2210.14519v1-abstract-full').style.display = 'none'; document.getElementById('2210.14519v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 October, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 4 figures, 3 extended data figures and 1 table</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">MSC Class:</span> 60G-08 <span class="has-text-black-bis has-text-weight-semibold">ACM Class:</span> B.0 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2210.08553">arXiv:2210.08553</a> <span> [<a href="https://arxiv.org/pdf/2210.08553">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Mesoscale and Nanoscale Physics">cond-mat.mes-hall</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s41467-022-34337-y">10.1038/s41467-022-34337-y <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Gate-tunable quantum pathways of high harmonic generation in graphene </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Cha%2C+S">Soonyoung Cha</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+M">Minjeong Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+Y">Youngjae Kim</a>, <a href="/search/physics?searchtype=author&query=Choi%2C+S">Shinyoung Choi</a>, <a href="/search/physics?searchtype=author&query=Kang%2C+S">Sejong Kang</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+H">Hoon Kim</a>, <a href="/search/physics?searchtype=author&query=Yoon%2C+S">Sangho Yoon</a>, <a href="/search/physics?searchtype=author&query=Moon%2C+G">Gunho Moon</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+T">Taeho Kim</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+Y+W">Ye Won Lee</a>, <a href="/search/physics?searchtype=author&query=Cho%2C+G+Y">Gil Young Cho</a>, <a href="/search/physics?searchtype=author&query=Park%2C+M+J">Moon Jeong Park</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Cheol-Joo Kim</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+B+J">B. J. Kim</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+J">JaeDong Lee</a>, <a href="/search/physics?searchtype=author&query=Jo%2C+M">Moon-Ho Jo</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+J">Jonghwan Kim</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2210.08553v1-abstract-short" style="display: inline;"> Under strong laser fields, electrons in solids radiate high-harmonic fields by travelling through quantum pathways in Bloch bands in the sub-laser-cycle timescales. Understanding these pathways in the momentum space through the high-harmonic radiation can enable an all-optical ultrafast probe to observe coherent lightwave-driven processes and measure electronic structures as recently demonstrated… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2210.08553v1-abstract-full').style.display = 'inline'; document.getElementById('2210.08553v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2210.08553v1-abstract-full" style="display: none;"> Under strong laser fields, electrons in solids radiate high-harmonic fields by travelling through quantum pathways in Bloch bands in the sub-laser-cycle timescales. Understanding these pathways in the momentum space through the high-harmonic radiation can enable an all-optical ultrafast probe to observe coherent lightwave-driven processes and measure electronic structures as recently demonstrated for semiconductors. However, such demonstration has been largely limited for semimetals because the absence of the bandgap hinders an experimental characterization of the exact pathways. In this study, by combining electrostatic control of chemical potentials with HHG measurement, we resolve quantum pathways of massless Dirac fermions in graphene under strong laser fields. Electrical modulation of HHG reveals quantum interference between the multi-photon interband excitation channels. As the light-matter interaction deviates beyond the perturbative regime, elliptically polarized laser fields efficiently drive massless Dirac fermions via an intricate coupling between the interband and intraband transitions, which is corroborated by our theoretical calculations. Our findings pave the way for strong-laser-field tomography of Dirac electrons in various quantum semimetals and their ultrafast electronics with a gate control. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2210.08553v1-abstract-full').style.display = 'none'; document.getElementById('2210.08553v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 October, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">33 pages, 4 figures, Soonyoung Cha and Minjeong Kim contributed equally to this work, To whom correspondence should be addressed: jonghwankim@postech</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2210.05934">arXiv:2210.05934</a> <span> [<a href="https://arxiv.org/pdf/2210.05934">pdf</a>, <a href="https://arxiv.org/format/2210.05934">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="General Relativity and Quantum Cosmology">gr-qc</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Input optics systems of the KAGRA detector during O3GK </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Akutsu%2C+T">T. Akutsu</a>, <a href="/search/physics?searchtype=author&query=Ando%2C+M">M. Ando</a>, <a href="/search/physics?searchtype=author&query=Arai%2C+K">K. Arai</a>, <a href="/search/physics?searchtype=author&query=Arai%2C+Y">Y. Arai</a>, <a href="/search/physics?searchtype=author&query=Araki%2C+S">S. Araki</a>, <a href="/search/physics?searchtype=author&query=Araya%2C+A">A. Araya</a>, <a href="/search/physics?searchtype=author&query=Aritomi%2C+N">N. Aritomi</a>, <a href="/search/physics?searchtype=author&query=Asada%2C+H">H. Asada</a>, <a href="/search/physics?searchtype=author&query=Aso%2C+Y">Y. Aso</a>, <a href="/search/physics?searchtype=author&query=Bae%2C+S">S. Bae</a>, <a href="/search/physics?searchtype=author&query=Bae%2C+Y">Y. Bae</a>, <a href="/search/physics?searchtype=author&query=Baiotti%2C+L">L. Baiotti</a>, <a href="/search/physics?searchtype=author&query=Bajpai%2C+R">R. Bajpai</a>, <a href="/search/physics?searchtype=author&query=Barton%2C+M+A">M. A. Barton</a>, <a href="/search/physics?searchtype=author&query=Cannon%2C+K">K. Cannon</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+Z">Z. Cao</a>, <a href="/search/physics?searchtype=author&query=Capocasa%2C+E">E. Capocasa</a>, <a href="/search/physics?searchtype=author&query=Chan%2C+M">M. Chan</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+C">C. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+K">K. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Chiang%2C+C">C-I. Chiang</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+H">H. Chu</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+Y">Y-K. Chu</a>, <a href="/search/physics?searchtype=author&query=Eguchi%2C+S">S. Eguchi</a> , et al. (228 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2210.05934v1-abstract-short" style="display: inline;"> KAGRA, the underground and cryogenic gravitational-wave detector, was operated for its solo observation from February 25th to March 10th, 2020, and its first joint observation with the GEO 600 detector from April 7th -- 21st, 2020 (O3GK). This study presents an overview of the input optics systems of the KAGRA detector, which consist of various optical systems, such as a laser source, its intensit… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2210.05934v1-abstract-full').style.display = 'inline'; document.getElementById('2210.05934v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2210.05934v1-abstract-full" style="display: none;"> KAGRA, the underground and cryogenic gravitational-wave detector, was operated for its solo observation from February 25th to March 10th, 2020, and its first joint observation with the GEO 600 detector from April 7th -- 21st, 2020 (O3GK). This study presents an overview of the input optics systems of the KAGRA detector, which consist of various optical systems, such as a laser source, its intensity and frequency stabilization systems, modulators, a Faraday isolator, mode-matching telescopes, and a high-power beam dump. These optics were successfully delivered to the KAGRA interferometer and operated stably during the observations. The laser frequency noise was observed to limit the detector sensitivity above a few kHz, whereas the laser intensity did not significantly limit the detector sensitivity. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2210.05934v1-abstract-full').style.display = 'none'; document.getElementById('2210.05934v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 October, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2210.04753">arXiv:2210.04753</a> <span> [<a href="https://arxiv.org/pdf/2210.04753">pdf</a>, <a href="https://arxiv.org/format/2210.04753">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1002/adem.202301654">10.1002/adem.202301654 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Establishing Epitaxial Connectedness in Multi-Stacking: The Survival of Thru-Holes in Thru-Hole Epitaxy </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Lee%2C+Y">Youngjun Lee</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+S">Seungjun Lee</a>, <a href="/search/physics?searchtype=author&query=Choi%2C+J">Jaewu Choi</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Chinkyo Kim</a>, <a href="/search/physics?searchtype=author&query=Kwon%2C+Y">Young-Kyun Kwon</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2210.04753v2-abstract-short" style="display: inline;"> Thru-hole epitaxy has recently been reported to be able to grow readily detachable domains crystallographically aligned with the underlying substrate over 2D mask material transferred onto a substrate. [Jang \textit{et al.}, \textit{Adv. Mater. Interfaces}, \textbf{2023} \textit{10}, 4 2201406] While the experimental demonstration of thru-hole epitaxy of GaN over multiple stacks of $h$-BN was evid… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2210.04753v2-abstract-full').style.display = 'inline'; document.getElementById('2210.04753v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2210.04753v2-abstract-full" style="display: none;"> Thru-hole epitaxy has recently been reported to be able to grow readily detachable domains crystallographically aligned with the underlying substrate over 2D mask material transferred onto a substrate. [Jang \textit{et al.}, \textit{Adv. Mater. Interfaces}, \textbf{2023} \textit{10}, 4 2201406] While the experimental demonstration of thru-hole epitaxy of GaN over multiple stacks of $h$-BN was evident, the detailed mechanism of how small holes in each stack of $h$-BN survived as thru-holes during multiple stacking of $h$-BN was not intuitively clear. Here, we use Monte Carlo simulations to investigate the conditions under which holes in each stack of 2D mask layers can survive as thru-holes during multiple stacking. If holes are highly anisotropic in shape by connecting smaller holes in a particular direction, thru-holes can be maintained with a high survival rate per stack, establishing more epitaxial connectedness. Our work verifies and supports that thru-hole epitaxy is attributed to the epitaxial connectedness established by thru-holes surviving even through multiple stacks. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2210.04753v2-abstract-full').style.display = 'none'; document.getElementById('2210.04753v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 October, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 6 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Adv. Eng. Mater. 26 (3), 2301654 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2209.13813">arXiv:2209.13813</a> <span> [<a href="https://arxiv.org/pdf/2209.13813">pdf</a>, <a href="https://arxiv.org/format/2209.13813">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/s40042-022-00633-5">10.1007/s40042-022-00633-5 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Evolution of electronic band reconstruction in thickness-controlled perovskite SrRuO$_3$ thin films </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Sohn%2C+B">Byungmin Sohn</a>, <a href="/search/physics?searchtype=author&query=Kim%2C+C">Changyoung Kim</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2209.13813v1-abstract-short" style="display: inline;"> Transition metal perovskite oxides display a variety of emergent phenomena which are tunable by tailoring the oxygen octahedral rotation. SrRuO$_3$, a ferromagnetic perovskite oxide, is well-known to have various atomic structures and octahedral rotations when grown as thin films. However, how the electronic structure changes with the film thickness has been hardly studied. Here, by using angle-re… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.13813v1-abstract-full').style.display = 'inline'; document.getElementById('2209.13813v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2209.13813v1-abstract-full" style="display: none;"> Transition metal perovskite oxides display a variety of emergent phenomena which are tunable by tailoring the oxygen octahedral rotation. SrRuO$_3$, a ferromagnetic perovskite oxide, is well-known to have various atomic structures and octahedral rotations when grown as thin films. However, how the electronic structure changes with the film thickness has been hardly studied. Here, by using angle-resolved photoemission spectroscopy and electron diffraction techniques, we study the electronic structure of SrRuO$_3$ thin films as a function of the film thickness. Different reconstructed electronic structures and spectral weights are observed for films with various thicknesses. We suggest that octahedral rotations on the surface can be qualitatively estimated via comparison of intensities of different bands. Our observation and methodology shed light on how structural variation and transition may be understood in terms of photoemission spectroscopy data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.13813v1-abstract-full').style.display = 'none'; document.getElementById('2209.13813v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 September, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 figures</span> </p> </li> </ol> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a 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