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<button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <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/2401.02707">arXiv:2401.02707</a> <span> [<a href="https://arxiv.org/pdf/2401.02707">pdf</a>, <a href="https://arxiv.org/format/2401.02707">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> <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="Quantum Physics">quant-ph</span> </div> </div> <p class="title is-5 mathjax"> Beyond symmetry-protected BICs: transmission through asymmetric crossbar junctions in one-dimensional waveguides </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Pinto%2C+S">Sof铆a Pinto</a>, <a href="/search/physics?searchtype=author&query=Molina%2C+R+A">Rafael A. Molina</a>, <a href="/search/physics?searchtype=author&query=Orellana%2C+P+A">Pedro A. Orellana</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="2401.02707v1-abstract-short" style="display: inline;"> Over the last few decades, the study of Bound States in the Continuum, their formation, and properties has attracted lots of attention, especially in optics and photonics. It is particularly noticeable that most of these investigations base their studies on symmetric systems. In this article, we study the formation of bound states in the continuum in electronic and photonic transport systems consi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.02707v1-abstract-full').style.display = 'inline'; document.getElementById('2401.02707v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.02707v1-abstract-full" style="display: none;"> Over the last few decades, the study of Bound States in the Continuum, their formation, and properties has attracted lots of attention, especially in optics and photonics. It is particularly noticeable that most of these investigations base their studies on symmetric systems. In this article, we study the formation of bound states in the continuum in electronic and photonic transport systems consisting of crossbar junctions formed by one-dimensional waveguides, considering asymmetric junctions with commensurable lengths for the upper and lower arms. We also study how BICs form in linear junction arrays as a function of the distance between consecutive junctions and their commensurability with the upper and lower arms. We solve the Helmholtz equation for the crossbar junctions and calculate the transmission probability, probability density in the intersections, and quality factor. The presence of quasi-BICs is reflected in the transmission probability as a sharp resonance in the middle of a symmetric Fano resonance along with Dirac's delta functions in the probability density and divergence in the quality factors. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.02707v1-abstract-full').style.display = 'none'; document.getElementById('2401.02707v1-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 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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">12 pages, 12 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/2308.01658">arXiv:2308.01658</a> <span> [<a href="https://arxiv.org/pdf/2308.01658">pdf</a>, <a href="https://arxiv.org/format/2308.01658">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/10.1016/j.nima.2023.168579">10.1016/j.nima.2023.168579 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Long term experience with perfluorobutane in COMPASS RICH </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bradamante%2C+F">F. Bradamante</a>, <a href="/search/physics?searchtype=author&query=Bressan%2C+A">A. Bressan</a>, <a href="/search/physics?searchtype=author&query=Cicuttin%2C+A">A. Cicuttin</a>, <a href="/search/physics?searchtype=author&query=Crespo%2C+M+L">M. L. Crespo</a>, <a href="/search/physics?searchtype=author&query=Chatterjee%2C+C">C. Chatterjee</a>, <a href="/search/physics?searchtype=author&query=Ciliberti%2C+P">P. Ciliberti</a>, <a href="/search/physics?searchtype=author&query=Torre%2C+S+D">S. Dalla Torre</a>, <a href="/search/physics?searchtype=author&query=Florian%2C+W">W. Florian</a>, <a href="/search/physics?searchtype=author&query=Ordonez%2C+L+G">L. Garcia Ordonez</a>, <a href="/search/physics?searchtype=author&query=Gregori%2C+M">M. Gregori</a>, <a href="/search/physics?searchtype=author&query=Kerbizi%2C+A">A. Kerbizi</a>, <a href="/search/physics?searchtype=author&query=Levorato%2C+S">S. Levorato</a>, <a href="/search/physics?searchtype=author&query=Martin%2C+A">A. Martin</a>, <a href="/search/physics?searchtype=author&query=Menon%2C+G">G. Menon</a>, <a href="/search/physics?searchtype=author&query=Molina%2C+R+S">R. S. Molina</a>, <a href="/search/physics?searchtype=author&query=Moretti%2C+A">A. Moretti</a>, <a href="/search/physics?searchtype=author&query=Tessarotto%2C+F">F. Tessarotto</a>, <a href="/search/physics?searchtype=author&query=Triloki"> Triloki</a>, <a href="/search/physics?searchtype=author&query=Valinoti%2C+B">B. Valinoti</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="2308.01658v1-abstract-short" style="display: inline;"> COMPASS RICH-1 has used high-purity perfluorobutane as radiator gas since 2001. The operation and control of the radiator gas has evolved over years with continuous improvements. We report on the experience gained in the 20 year-long operation of perfluorobutane as COMPASS RICH radiator. Very accurate values for the radiator gas refractive index are needed for high-performance particle identificat… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.01658v1-abstract-full').style.display = 'inline'; document.getElementById('2308.01658v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2308.01658v1-abstract-full" style="display: none;"> COMPASS RICH-1 has used high-purity perfluorobutane as radiator gas since 2001. The operation and control of the radiator gas has evolved over years with continuous improvements. We report on the experience gained in the 20 year-long operation of perfluorobutane as COMPASS RICH radiator. Very accurate values for the radiator gas refractive index are needed for high-performance particle identification. The procedure has evolved over years and the one presently in use, which provides refractive index estimate at the 1 ppm level, is discussed. Perfluorobutane procurement is becoming challenging, and the minimization of material waste is now a priority for the protection of the environment. Commercially available perfluorobutane needs dedicated filtering before usage and typical material losses in the filtering procedure were around 30%. Recent efforts allowed us to reduce them to about 5%. A potential alternative to fluorocarbon radiators in gaseous RICHes is also presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.01658v1-abstract-full').style.display = 'none'; document.getElementById('2308.01658v1-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 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">4 pages, 3 figures 2 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/2306.01821">arXiv:2306.01821</a> <span> [<a href="https://arxiv.org/pdf/2306.01821">pdf</a>, <a href="https://arxiv.org/ps/2306.01821">ps</a>, <a href="https://arxiv.org/format/2306.01821">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="Mesoscale and Nanoscale Physics">cond-mat.mes-hall</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Chaotic Dynamics">nlin.CD</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</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"> Missing levels in intermediate spectra </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Hita-P%C3%A9rez%2C+M">Mar铆a Hita-P茅rez</a>, <a href="/search/physics?searchtype=author&query=Mu%C3%B1oz%2C+L">Laura Mu帽oz</a>, <a href="/search/physics?searchtype=author&query=Molina%2C+R+A">Rafael A. Molina</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="2306.01821v2-abstract-short" style="display: inline;"> We derive an expression for the nearest-neighbor spacing distribution $P(s)$ of the energy levels of quantum systems with intermediate dynamics between regularity and chaos and missing levels due to random experimental errors. The expression is based on the Brody distribution, the most widely used for fitting mixed spectra as a function of one parameter. By using Monte Carlo simulations of interme… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.01821v2-abstract-full').style.display = 'inline'; document.getElementById('2306.01821v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2306.01821v2-abstract-full" style="display: none;"> We derive an expression for the nearest-neighbor spacing distribution $P(s)$ of the energy levels of quantum systems with intermediate dynamics between regularity and chaos and missing levels due to random experimental errors. The expression is based on the Brody distribution, the most widely used for fitting mixed spectra as a function of one parameter. By using Monte Carlo simulations of intermediate spectra based on the $尾$-Hermite ensemble of Random Matrix Theory, we evaluate the quality of the formula and its suitability for fitting purposes. Estimations of the Brody parameter and the fraction of missing levels can be obtained by a least-square two-parameter fitting of the experimental $P(s)$. The results should be important to distinguish the origins of deviations from RMT in experimental spectra. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.01821v2-abstract-full').style.display = 'none'; document.getElementById('2306.01821v2-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> 7 June, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 June, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.01553">arXiv:2303.01553</a> <span> [<a href="https://arxiv.org/pdf/2303.01553">pdf</a>, <a href="https://arxiv.org/ps/2303.01553">ps</a>, <a href="https://arxiv.org/format/2303.01553">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="Chaotic Dynamics">nlin.CD</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Classical Physics">physics.class-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/10.1140/epjp/s13360-023-04391-6">10.1140/epjp/s13360-023-04391-6 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Experimental observation of phase transitions of a deformed Dicke model using a reconfigurable, bi-parametric electronic platform </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Quiroz-Juarez%2C+M+A">Mario A. Quiroz-Juarez</a>, <a href="/search/physics?searchtype=author&query=Corps%2C+%C3%81+L">脕ngel L. Corps</a>, <a href="/search/physics?searchtype=author&query=Molina%2C+R+A">Rafael A. Molina</a>, <a href="/search/physics?searchtype=author&query=Rela%C3%B1o%2C+A">Armando Rela帽o</a>, <a href="/search/physics?searchtype=author&query=Arag%C3%B3n%2C+J+L">Jos茅 L. Arag贸n</a>, <a href="/search/physics?searchtype=author&query=Le%C3%B3n-Montiel%2C+R+d+J">Roberto de J. Le贸n-Montiel</a>, <a href="/search/physics?searchtype=author&query=Hirsch%2C+J+G">Jorge G. Hirsch</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="2303.01553v2-abstract-short" style="display: inline;"> We experimentally study the infinite-size limit of the Dicke model of quantum optics with a parity-breaking deformation strength that couples the system to an external bosonic reservoir. We focus on the dynamical consequences of such symmetry-breaking, which makes the classical phase space asymmetric with non-equivalent energy wells. We present an experimental implementation of the classical versi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.01553v2-abstract-full').style.display = 'inline'; document.getElementById('2303.01553v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.01553v2-abstract-full" style="display: none;"> We experimentally study the infinite-size limit of the Dicke model of quantum optics with a parity-breaking deformation strength that couples the system to an external bosonic reservoir. We focus on the dynamical consequences of such symmetry-breaking, which makes the classical phase space asymmetric with non-equivalent energy wells. We present an experimental implementation of the classical version of the deformed Dicke model using a state-of-the-art bi-parametric electronic platform. Our platform constitutes a playground for studying representative phenomena of the deformed Dicke model in electrical circuits with the possibility of externally controlling parameters and initial conditions. In particular, we investigate the dynamics of the ground state, various phase transitions, and the asymmetry of the energy wells as a function of the coupling strength $纬$ and the deformation strength $伪$ in the resonant case. Additionally, to characterize the various behavior regimes, we present a two-dimensional phase diagram as a function of the two intrinsic system parameters. The onset of chaos is also analyzed experimentally. Our findings provide a clear connection between theoretical predictions and experimental observations, demonstrating the usefulness of our bi-parametric electronic setup. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.01553v2-abstract-full').style.display = 'none'; document.getElementById('2303.01553v2-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> 7 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.01275">arXiv:2303.01275</a> <span> [<a href="https://arxiv.org/pdf/2303.01275">pdf</a>, <a href="https://arxiv.org/format/2303.01275">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> </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/10.1140/epja/s10050-023-01025-4">10.1140/epja/s10050-023-01025-4 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> AGATA: Advancements in Software Developments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=St%C3%A9zowski%2C+O">O. St茅zowski</a>, <a href="/search/physics?searchtype=author&query=Dudouet%2C+J">J. Dudouet</a>, <a href="/search/physics?searchtype=author&query=Goasduff%2C+A">A. Goasduff</a>, <a href="/search/physics?searchtype=author&query=Korichi%2C+A">A. Korichi</a>, <a href="/search/physics?searchtype=author&query=Aubert%2C+Y">Y. Aubert</a>, <a href="/search/physics?searchtype=author&query=Balogh%2C+M">M. Balogh</a>, <a href="/search/physics?searchtype=author&query=Baulieu%2C+G">G. Baulieu</a>, <a href="/search/physics?searchtype=author&query=Bazzacco%2C+D">D. Bazzacco</a>, <a href="/search/physics?searchtype=author&query=Brambilla%2C+S">S. Brambilla</a>, <a href="/search/physics?searchtype=author&query=Brugnara%2C+D">D. Brugnara</a>, <a href="/search/physics?searchtype=author&query=Dosme%2C+N">N. Dosme</a>, <a href="/search/physics?searchtype=author&query=Elloumi%2C+S">S. Elloumi</a>, <a href="/search/physics?searchtype=author&query=Gauron%2C+P">P. Gauron</a>, <a href="/search/physics?searchtype=author&query=Grave%2C+X">X. Grave</a>, <a href="/search/physics?searchtype=author&query=Jacob%2C+J">J. Jacob</a>, <a href="/search/physics?searchtype=author&query=Lafage%2C+V">V. Lafage</a>, <a href="/search/physics?searchtype=author&query=Lemasson%2C+A">A. Lemasson</a>, <a href="/search/physics?searchtype=author&query=Legay%2C+E">E. Legay</a>, <a href="/search/physics?searchtype=author&query=Jeannic%2C+P+L">P. Le Jeannic</a>, <a href="/search/physics?searchtype=author&query=Ljungvall%2C+J">J. Ljungvall</a>, <a href="/search/physics?searchtype=author&query=Matta%2C+A">A. Matta</a>, <a href="/search/physics?searchtype=author&query=Molina%2C+R">R. Molina</a>, <a href="/search/physics?searchtype=author&query=Philippon%2C+G">G. Philippon</a>, <a href="/search/physics?searchtype=author&query=Sedlak%2C+M">M. Sedlak</a>, <a href="/search/physics?searchtype=author&query=Taurigna-Quere%2C+M">M. Taurigna-Quere</a> , et al. (1 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="2303.01275v1-abstract-short" style="display: inline;"> Presently, gamma-ray tracking in germanium segmented detectors is realised by applying two advanced, complex algorithms. While they have already triggered an intensive R&D, they are still subject to further improvements. Making such algorithms effective, online in real time conditions and/or offline for deeper analysis, in data pipelines do require many additional software developments. This revie… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.01275v1-abstract-full').style.display = 'inline'; document.getElementById('2303.01275v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.01275v1-abstract-full" style="display: none;"> Presently, gamma-ray tracking in germanium segmented detectors is realised by applying two advanced, complex algorithms. While they have already triggered an intensive R&D, they are still subject to further improvements. Making such algorithms effective, online in real time conditions and/or offline for deeper analysis, in data pipelines do require many additional software developments. This review paper gives an overview of the various bricks of software produced so far by the AGATA collaboration. It provides hints of what is foreseen for the next phases of the project up to its full configuration namely with 180 capsules in the array. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.01275v1-abstract-full').style.display = 'none'; document.getElementById('2303.01275v1-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 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2205.14646">arXiv:2205.14646</a> <span> [<a href="https://arxiv.org/pdf/2205.14646">pdf</a>, <a href="https://arxiv.org/format/2205.14646">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Atmospheric and Oceanic Physics">physics.ao-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Populations and Evolution">q-bio.PE</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/10.1111/gcb.16644">10.1111/gcb.16644 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The role of ecosystem transpiration in creating alternate moisture regimes by influencing atmospheric moisture convergence </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Makarieva%2C+A+M">Anastassia M. Makarieva</a>, <a href="/search/physics?searchtype=author&query=Nefiodov%2C+A+V">Andrei V. Nefiodov</a>, <a href="/search/physics?searchtype=author&query=Nobre%2C+A+D">Antonio Donato Nobre</a>, <a href="/search/physics?searchtype=author&query=Baudena%2C+M">Mara Baudena</a>, <a href="/search/physics?searchtype=author&query=Bardi%2C+U">Ugo Bardi</a>, <a href="/search/physics?searchtype=author&query=Sheil%2C+D">Douglas Sheil</a>, <a href="/search/physics?searchtype=author&query=Saleska%2C+S+R">Scott R. Saleska</a>, <a href="/search/physics?searchtype=author&query=Molina%2C+R+D">Ruben D. Molina</a>, <a href="/search/physics?searchtype=author&query=Rammig%2C+A">Anja Rammig</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="2205.14646v4-abstract-short" style="display: inline;"> The terrestrial water cycle links the soil and atmosphere moisture reservoirs through four fluxes: precipitation, evaporation, runoff, and atmospheric moisture convergence (net import of water vapor to balance runoff). Each of these processes is essential for human and ecosystem well-being. Predicting how the water cycle responds to changes in vegetation cover remains a challenge. Recently, change… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.14646v4-abstract-full').style.display = 'inline'; document.getElementById('2205.14646v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2205.14646v4-abstract-full" style="display: none;"> The terrestrial water cycle links the soil and atmosphere moisture reservoirs through four fluxes: precipitation, evaporation, runoff, and atmospheric moisture convergence (net import of water vapor to balance runoff). Each of these processes is essential for human and ecosystem well-being. Predicting how the water cycle responds to changes in vegetation cover remains a challenge. Recently, changes in plant transpiration across the Amazon basin were shown to be associated disproportionately with changes in rainfall, suggesting that even small declines in transpiration (e.g., from deforestation) would lead to much larger declines in rainfall. Here, constraining these results by the law of mass conservation, we show that in a sufficiently wet atmosphere, forest transpiration can control atmospheric moisture convergence such that increased transpiration enhances atmospheric moisture import and resulting water yield. Conversely, in a sufficiently dry atmosphere increased transpiration reduces atmospheric moisture convergence and water yield. This previously unrecognized dichotomy can explain the otherwise mixed observations of how water yield responds to re-greening, as we illustrate with examples from China's Loess Plateau. Our analysis indicates that any additional precipitation recycling by additional vegetation increases precipitation but decreases local water yield and steady-state runoff. Therefore, in the drier regions and early stages of ecological restoration, the role of vegetation can be confined to precipitation recycling, while once a wetter stage is achieved, additional vegetation enhances atmospheric moisture convergence and water yield. Evaluating the transition between regimes, and recognizing the potential of vegetation for enhancing moisture convergence, are crucial for characterizing the consequences of deforestation and for motivating and guiding ecological restoration. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.14646v4-abstract-full').style.display = 'none'; document.getElementById('2205.14646v4-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 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">39 pages, 12 figures, 5 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/2106.12544">arXiv:2106.12544</a> <span> [<a href="https://arxiv.org/pdf/2106.12544">pdf</a>, <a href="https://arxiv.org/format/2106.12544">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Atmospheric and Oceanic Physics">physics.ao-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</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/10.1175/JAS-D-21-0172.1">10.1175/JAS-D-21-0172.1 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Water lifting and outflow gain of kinetic energy in tropical cyclones </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Makarieva%2C+A+M">Anastassia M. Makarieva</a>, <a href="/search/physics?searchtype=author&query=Gorshkov%2C+V+G">Victor G. Gorshkov</a>, <a href="/search/physics?searchtype=author&query=Nefiodov%2C+A+V">Andrei V. Nefiodov</a>, <a href="/search/physics?searchtype=author&query=Chikunov%2C+A+V">Alexander V. Chikunov</a>, <a href="/search/physics?searchtype=author&query=Sheil%2C+D">Douglas Sheil</a>, <a href="/search/physics?searchtype=author&query=Nobre%2C+A+D">Antonio Donato Nobre</a>, <a href="/search/physics?searchtype=author&query=Nobre%2C+P">Paulo Nobre</a>, <a href="/search/physics?searchtype=author&query=Plunien%2C+G">G眉nter Plunien</a>, <a href="/search/physics?searchtype=author&query=Molina%2C+R+D">Ruben D. Molina</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="2106.12544v2-abstract-short" style="display: inline;"> While water lifting plays a recognized role in the global atmospheric power budget, estimates for this role in tropical cyclones vary from no effect to a major reduction in storm intensity. To better assess this impact, here we consider the work output of an infinitely narrow thermodynamic cycle with two streamlines connecting the top of the boundary layer in the vicinity of maximum wind (without… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.12544v2-abstract-full').style.display = 'inline'; document.getElementById('2106.12544v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2106.12544v2-abstract-full" style="display: none;"> While water lifting plays a recognized role in the global atmospheric power budget, estimates for this role in tropical cyclones vary from no effect to a major reduction in storm intensity. To better assess this impact, here we consider the work output of an infinitely narrow thermodynamic cycle with two streamlines connecting the top of the boundary layer in the vicinity of maximum wind (without assuming gradient-wind balance) to an arbitrary level in the inviscid free troposphere. The reduction of a storm's maximum wind speed due to water lifting is found to decline with increasing efficiency of the cycle and is about 5% for maximum observed Carnot efficiencies. In the steady-state cycle, there is an extra heat input associated with the warming of precipitating water. The corresponding positive extra work is of an opposite sign and several times smaller than that due to water lifting. We also estimate the gain of kinetic energy in the outflow region. Contrary to previous assessments, this term is found to be large when the outflow radius is small (comparable to the radius of maximum wind). Using our framework, we show that Emanuel's maximum potential intensity (E-PI) corresponds to a cycle where total work equals work performed at the top of the boundary layer (net work in the free troposphere is zero). This constrains a dependence between the outflow temperature and heat input at the point of maximum wind, but does not constrain the radial pressure gradient. We outline the implications of the established patterns for assessing real storms. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.12544v2-abstract-full').style.display = 'none'; document.getElementById('2106.12544v2-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 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 June, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2021. </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">Revised resubmission to the Journal of the Atmospheric Sciences. Reply to the first and third reviewers can be found in the Appendix. 35 pages, 3 figures, 2 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/2012.12099">arXiv:2012.12099</a> <span> [<a href="https://arxiv.org/pdf/2012.12099">pdf</a>, <a href="https://arxiv.org/format/2012.12099">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Geophysics">physics.geo-ph</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="Applications">stat.AP</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/10.1109/IGARSS.2018.8517647">10.1109/IGARSS.2018.8517647 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Deep Gaussian Processes for geophysical parameter retrieval </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Svendsen%2C+D+H">Daniel Heestermans Svendsen</a>, <a href="/search/physics?searchtype=author&query=Morales-%C3%81lvarez%2C+P">Pablo Morales-脕lvarez</a>, <a href="/search/physics?searchtype=author&query=Molina%2C+R">Rafael Molina</a>, <a href="/search/physics?searchtype=author&query=Camps-Valls%2C+G">Gustau Camps-Valls</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="2012.12099v1-abstract-short" style="display: inline;"> This paper introduces deep Gaussian processes (DGPs) for geophysical parameter retrieval. Unlike the standard full GP model, the DGP accounts for complicated (modular, hierarchical) processes, provides an efficient solution that scales well to large datasets, and improves prediction accuracy over standard full and sparse GP models. We give empirical evidence of performance for estimation of surfac… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.12099v1-abstract-full').style.display = 'inline'; document.getElementById('2012.12099v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2012.12099v1-abstract-full" style="display: none;"> This paper introduces deep Gaussian processes (DGPs) for geophysical parameter retrieval. Unlike the standard full GP model, the DGP accounts for complicated (modular, hierarchical) processes, provides an efficient solution that scales well to large datasets, and improves prediction accuracy over standard full and sparse GP models. We give empirical evidence of performance for estimation of surface dew point temperature from infrared sounding data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2012.12099v1-abstract-full').style.display = 'none'; document.getElementById('2012.12099v1-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> 7 December, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2020. </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">Preprint, Paper published in IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, Valencia, 2018, pp. 6175-6178</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.01667">arXiv:2011.01667</a> <span> [<a href="https://arxiv.org/pdf/2011.01667">pdf</a>, <a href="https://arxiv.org/format/2011.01667">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Data Analysis, Statistics and Probability">physics.data-an</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Other Condensed Matter">cond-mat.other</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> </div> </div> <p class="title is-5 mathjax"> Accuracy and precision of the estimation of the number of missing levels in chaotic spectra using long-range correlations </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Casal%2C+I">I. Casal</a>, <a href="/search/physics?searchtype=author&query=Mu%C3%B1oz%2C+L">L. Mu帽oz</a>, <a href="/search/physics?searchtype=author&query=Molina%2C+R+A">R. A. Molina</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="2011.01667v1-abstract-short" style="display: inline;"> We study the accuracy and precision for estimating the fraction of observed levels $\varphi$ in quantum chaotic spectra through long-range correlations. We focus on the main statistics where theoretical formulas for the fraction of missing levels have been derived, the $螖_3$ of Dyson and Mehta and the power spectrum of the $未_n$ statistic. We use Monte Carlo simulations of the spectra from the dia… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.01667v1-abstract-full').style.display = 'inline'; document.getElementById('2011.01667v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.01667v1-abstract-full" style="display: none;"> We study the accuracy and precision for estimating the fraction of observed levels $\varphi$ in quantum chaotic spectra through long-range correlations. We focus on the main statistics where theoretical formulas for the fraction of missing levels have been derived, the $螖_3$ of Dyson and Mehta and the power spectrum of the $未_n$ statistic. We use Monte Carlo simulations of the spectra from the diagonalization of Gaussian Orthogonal Ensemble matrices with a definite number of levels randomly taken out to fit the formulas and calculate the distribution of the estimators for different sizes of the spectrum and values of $\varphi$. A proper averaging of the power spectrum of the $未_n$ statistic needs to be performed for avoiding systematic errors in the estimation. Once the proper averaging is made the estimation of the fraction of observed levels has quite good accuracy for the two methods even for the lowest dimensions we consider $d=100$. However, the precision is generally better for the estimation using the power spectrum of the $未_n$ as compared to the estimation using the $螖_3$ statistic. This difference is clearly bigger for larger dimensions. Our results show that a careful analysis of the value of the fit in view of the ensemble distribution of the estimations is mandatory for understanding its actual significance and give a realistic error interval. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.01667v1-abstract-full').style.display = 'none'; document.getElementById('2011.01667v1-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 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2020. </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, 9 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/2002.05959">arXiv:2002.05959</a> <span> [<a href="https://arxiv.org/pdf/2002.05959">pdf</a>, <a href="https://arxiv.org/format/2002.05959">other</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="Quantum Gases">cond-mat.quant-gas</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/10.1103/PhysRevB.101.184306">10.1103/PhysRevB.101.184306 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Van Hove bound states in the continuum: Localised subradiant states in finite open lattices </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Mur-Petit%2C+J">Jordi Mur-Petit</a>, <a href="/search/physics?searchtype=author&query=Molina%2C+R+A">Rafael A. Molina</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="2002.05959v2-abstract-short" style="display: inline;"> We show that finite lattices with arbitrary boundaries may support large degenerate subspaces, stemming from the underlying translational symmetry of the lattice. When the lattice is coupled to an environment, a potentially large number of these states remains weakly or perfectly uncoupled from the environment, realising a new kind of bound states in the continuum. These states are strongly locali… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.05959v2-abstract-full').style.display = 'inline'; document.getElementById('2002.05959v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2002.05959v2-abstract-full" style="display: none;"> We show that finite lattices with arbitrary boundaries may support large degenerate subspaces, stemming from the underlying translational symmetry of the lattice. When the lattice is coupled to an environment, a potentially large number of these states remains weakly or perfectly uncoupled from the environment, realising a new kind of bound states in the continuum. These states are strongly localized along particular directions of the lattice which, in the limit of strong coupling to the environment, leads to spatially-localized subradiant states. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.05959v2-abstract-full').style.display = 'none'; document.getElementById('2002.05959v2-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 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 February, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2020. </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, 4 figures. Minor changes, matches published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. B 101, 184306 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1912.10841">arXiv:1912.10841</a> <span> [<a href="https://arxiv.org/pdf/1912.10841">pdf</a>, <a href="https://arxiv.org/format/1912.10841">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="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/10.1051/0004-6361/201936777">10.1051/0004-6361/201936777 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Wideband 67-116 GHz receiver development for ALMA Band 2 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Yagoubov%2C+P">P. Yagoubov</a>, <a href="/search/physics?searchtype=author&query=Mroczkowski%2C+T">T. Mroczkowski</a>, <a href="/search/physics?searchtype=author&query=Belitsky%2C+V">V. Belitsky</a>, <a href="/search/physics?searchtype=author&query=Cuadrado-Calle%2C+D">D. Cuadrado-Calle</a>, <a href="/search/physics?searchtype=author&query=Cuttaia%2C+F">F. Cuttaia</a>, <a href="/search/physics?searchtype=author&query=Fuller%2C+G+A">G. A. Fuller</a>, <a href="/search/physics?searchtype=author&query=Gallego%2C+J+-">J. -D. Gallego</a>, <a href="/search/physics?searchtype=author&query=Gonzalez%2C+A">A. Gonzalez</a>, <a href="/search/physics?searchtype=author&query=Kaneko%2C+K">K. Kaneko</a>, <a href="/search/physics?searchtype=author&query=Mena%2C+P">P. Mena</a>, <a href="/search/physics?searchtype=author&query=Molina%2C+R">R. Molina</a>, <a href="/search/physics?searchtype=author&query=Nesti%2C+R">R. Nesti</a>, <a href="/search/physics?searchtype=author&query=Tapia%2C+V">V. Tapia</a>, <a href="/search/physics?searchtype=author&query=Villa%2C+F">F. Villa</a>, <a href="/search/physics?searchtype=author&query=Beltran%2C+M">M. Beltran</a>, <a href="/search/physics?searchtype=author&query=Cavaliere%2C+F">F. Cavaliere</a>, <a href="/search/physics?searchtype=author&query=Ceru%2C+J">J. Ceru</a>, <a href="/search/physics?searchtype=author&query=Chesmore%2C+G+E">G. E. Chesmore</a>, <a href="/search/physics?searchtype=author&query=Coughlin%2C+K">K. Coughlin</a>, <a href="/search/physics?searchtype=author&query=De+Breuck%2C+C">C. De Breuck</a>, <a href="/search/physics?searchtype=author&query=Fredrixon%2C+M">M. Fredrixon</a>, <a href="/search/physics?searchtype=author&query=George%2C+D">D. George</a>, <a href="/search/physics?searchtype=author&query=Gibson%2C+H">H. Gibson</a>, <a href="/search/physics?searchtype=author&query=Golec%2C+J">J. Golec</a>, <a href="/search/physics?searchtype=author&query=Josaitis%2C+A">A. Josaitis</a> , et al. (21 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="1912.10841v3-abstract-short" style="display: inline;"> ALMA has been operating since 2011, but has not yet been populated with the full suite of intended frequency bands. In particular, ALMA Band 2 (67-90 GHz) is the final band in the original ALMA band definition to be approved for production. We aim to produce a wideband, tuneable, sideband-separating receiver with 28 GHz of instantaneous bandwidth per polarisation operating in the sky frequency ran… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.10841v3-abstract-full').style.display = 'inline'; document.getElementById('1912.10841v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1912.10841v3-abstract-full" style="display: none;"> ALMA has been operating since 2011, but has not yet been populated with the full suite of intended frequency bands. In particular, ALMA Band 2 (67-90 GHz) is the final band in the original ALMA band definition to be approved for production. We aim to produce a wideband, tuneable, sideband-separating receiver with 28 GHz of instantaneous bandwidth per polarisation operating in the sky frequency range 67-116 GHz. Our design anticipates new ALMA requirements following the recommendations in the 2030 ALMA Development Roadmap. The cryogenic cartridge is designed to be compatible with the ALMA Band 2 cartridge slot, where the coldest components -- the feedhorns, orthomode transducers, and cryogenic low noise amplifiers -- operate at a temperature of 15 K. We use multiple simulation methods and tools to optimise our designs for both the passive optics and the active components. The cryogenic cartridge interfaces with a room temperature cartridge hosting the local oscillator (LO) and the downconverter module. This warm cartridge is largely based on GaAs semiconductor technology and is optimised to match the cryogenic receiver bandwidth with the required instantaneous LO tuning range. Our collaboration has designed, fabricated, and tested multiple technical solutions for each of the components, producing a state-of-the-art receiver covering the full ALMA Band 2 & 3 atmospheric window. The receiver is suitable for deployment on ALMA in the coming years, and is capable of dual-polarisation, sideband-separating observations in intermediate frequency bands spanning 4-18 GHz, for a total of 28 GHz on-sky bandwidth per polarisation channel. We conclude that the 67-116 GHz wideband implementation for ALMA Band 2 is now feasible, and this receiver is a compelling instrumental upgrade that will enhance observational capabilities and scientific reach. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.10841v3-abstract-full').style.display = 'none'; document.getElementById('1912.10841v3-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 February, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 December, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2019. </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">23 pages, accepted for publication in A&A on 20 Dec 2019. This version corrects the affiliations of 2 co-authors</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> A&A 634, A46 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1910.11000">arXiv:1910.11000</a> <span> [<a href="https://arxiv.org/pdf/1910.11000">pdf</a>, <a href="https://arxiv.org/format/1910.11000">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="Statistical Mechanics">cond-mat.stat-mech</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-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/10.21468/SciPostPhysProc.3.024">10.21468/SciPostPhysProc.3.024 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Fluctuations of work in realistic equilibrium states of quantum systems with conserved quantities </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Mur-Petit%2C+J">J. Mur-Petit</a>, <a href="/search/physics?searchtype=author&query=Rela%C3%B1o%2C+A">A. Rela帽o</a>, <a href="/search/physics?searchtype=author&query=Molina%2C+R+A">R. A. Molina</a>, <a href="/search/physics?searchtype=author&query=Jaksch%2C+D">D. Jaksch</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="1910.11000v2-abstract-short" style="display: inline;"> The out-of-equilibrium dynamics of quantum systems is one of the most fascinating problems in physics, with outstanding open questions on issues such as relaxation to equilibrium. An area of particular interest concerns few-body systems, where quantum and thermal fluctuations are expected to be especially relevant. In this contribution, we present numerical results demonstrating the impact of cons… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1910.11000v2-abstract-full').style.display = 'inline'; document.getElementById('1910.11000v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1910.11000v2-abstract-full" style="display: none;"> The out-of-equilibrium dynamics of quantum systems is one of the most fascinating problems in physics, with outstanding open questions on issues such as relaxation to equilibrium. An area of particular interest concerns few-body systems, where quantum and thermal fluctuations are expected to be especially relevant. In this contribution, we present numerical results demonstrating the impact of conserved quantities (or 'charges') in the outcomes of out-of-equilibrium measurements starting from realistic equilibrium states on a few-body system implementing the Dicke model. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1910.11000v2-abstract-full').style.display = 'none'; document.getElementById('1910.11000v2-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 March, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 October, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2019. </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">12 pages, 1 fig. Contribution to Proceedings of the 24th European Conference on Few-Body Problems in Physics (EFB24). Matches journal version published under CC BY 4.0</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> SciPost Phys. Proc. 3, 024 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1812.10790">arXiv:1812.10790</a> <span> [<a href="https://arxiv.org/pdf/1812.10790">pdf</a>, <a href="https://arxiv.org/format/1812.10790">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 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/10.1088/1748-0221/14/04/P04013">10.1088/1748-0221/14/04/P04013 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Design and performance of the LHCb trigger and full real-time reconstruction in Run 2 of the LHC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/physics?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/physics?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/physics?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/physics?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/physics?searchtype=author&query=Amerio%2C+S">S. Amerio</a>, <a href="/search/physics?searchtype=author&query=Anderlini%2C+L">L. Anderlini</a>, <a href="/search/physics?searchtype=author&query=d%27Argent%2C+P">P. d'Argent</a>, <a href="/search/physics?searchtype=author&query=Baranov%2C+A">A. Baranov</a>, <a href="/search/physics?searchtype=author&query=Barter%2C+W">W. Barter</a>, <a href="/search/physics?searchtype=author&query=Benson%2C+S">S. Benson</a>, <a href="/search/physics?searchtype=author&query=Bobulska%2C+D">D. Bobulska</a>, <a href="/search/physics?searchtype=author&query=Boettcher%2C+T">T. Boettcher</a>, <a href="/search/physics?searchtype=author&query=Borghi%2C+S">S. Borghi</a>, <a href="/search/physics?searchtype=author&query=Bowen%2C+E+E">E. E. Bowen</a>, <a href="/search/physics?searchtype=author&query=Brarda%2C+L">L. Brarda</a>, <a href="/search/physics?searchtype=author&query=Burr%2C+C">C. Burr</a>, <a href="/search/physics?searchtype=author&query=Cachemiche%2C+J+-">J. -P. Cachemiche</a>, <a href="/search/physics?searchtype=author&query=Gomez%2C+M+C">M. Calvo Gomez</a>, <a href="/search/physics?searchtype=author&query=Cattaneo%2C+M">M. Cattaneo</a>, <a href="/search/physics?searchtype=author&query=Chanal%2C+H">H. Chanal</a>, <a href="/search/physics?searchtype=author&query=Chapman%2C+M">M. Chapman</a>, <a href="/search/physics?searchtype=author&query=Chebbi%2C+M">M. Chebbi</a>, <a href="/search/physics?searchtype=author&query=Chefdeville%2C+M">M. Chefdeville</a>, <a href="/search/physics?searchtype=author&query=Ciambrone%2C+P">P. Ciambrone</a> , et al. (116 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="1812.10790v2-abstract-short" style="display: inline;"> The LHCb collaboration has redesigned its trigger to enable the full offline detector reconstruction to be performed in real time. Together with the real-time alignment and calibration of the detector, and a software infrastructure to make persistent the high-level physics objects produced during real-time processing, this redesign enabled the widespread deployment of real-time analysis during Run… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.10790v2-abstract-full').style.display = 'inline'; document.getElementById('1812.10790v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1812.10790v2-abstract-full" style="display: none;"> The LHCb collaboration has redesigned its trigger to enable the full offline detector reconstruction to be performed in real time. Together with the real-time alignment and calibration of the detector, and a software infrastructure to make persistent the high-level physics objects produced during real-time processing, this redesign enabled the widespread deployment of real-time analysis during Run 2. We describe the design of the Run 2 trigger and real-time reconstruction, and present data-driven performance measurements for a representative sample of LHCb's physics programme. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.10790v2-abstract-full').style.display = 'none'; document.getElementById('1812.10790v2-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 June, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 December, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2018. </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">46 pages, 35 figures, 1 table. All figures and tables are available at https://cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-DP-2019-001.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-LHCb-DP-2019-001 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 14 (2019) P04013 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1707.01390">arXiv:1707.01390</a> <span> [<a href="https://arxiv.org/pdf/1707.01390">pdf</a>, <a href="https://arxiv.org/format/1707.01390">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="Mesoscale and Nanoscale Physics">cond-mat.mes-hall</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Biological Physics">physics.bio-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/10.1039/C7CP03171H">10.1039/C7CP03171H <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Dynamics of coherence, localization and excitation transfer in disordered nanorings </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Somoza%2C+A+D">Alejandro D. Somoza</a>, <a href="/search/physics?searchtype=author&query=Sun%2C+K">Ke-Wei Sun</a>, <a href="/search/physics?searchtype=author&query=Molina%2C+R+A">Rafael A. Molina</a>, <a href="/search/physics?searchtype=author&query=Zhao%2C+Y">Yang Zhao</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="1707.01390v1-abstract-short" style="display: inline;"> Self-assembled supramolecular aggregates are excellent candidates for the design of efficient excitation transport devices. Both artificially prepared and natural photosynthetic aggregates in plants and bacteria present an important degree of disorder that is supposed to hinder excitation transport. Besides, molecular excitations couple to nuclear motion affecting excitation transport in a variety… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1707.01390v1-abstract-full').style.display = 'inline'; document.getElementById('1707.01390v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1707.01390v1-abstract-full" style="display: none;"> Self-assembled supramolecular aggregates are excellent candidates for the design of efficient excitation transport devices. Both artificially prepared and natural photosynthetic aggregates in plants and bacteria present an important degree of disorder that is supposed to hinder excitation transport. Besides, molecular excitations couple to nuclear motion affecting excitation transport in a variety of ways. We present an exhaustive study of exciton dynamics in disordered nanorings with long-range interactions under the influence of a phonon bath and take the LH2 system of purple bacteria as a model. Nuclear motion is explicitly taken into account by employing the Davydov ansatz description of the polaron and quantum dynamics are obtained using a time-dependent variational method. We reveal an optimal exciton-phonon coupling that suppresses disorder-induced localization and facilitate excitation de-trapping. This excitation transfer enhancement, mediated by environmental phonons, is attributed to energy relaxation toward extended, low-energy excitons provided by the precise LH2 geometry with anti-parallel dipoles and long-range interactions. An analysis of localization and spectral statistics is followed by dynamical measures of coherence and localization, transfer efficiency and superradiance. Linear absorption, 2D photon-echo spectra and diffusion measures of the exciton are examined to monitor the diffusive behavior as a function of the strengths of disorder and exciton-phonon coupling. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1707.01390v1-abstract-full').style.display = 'none'; document.getElementById('1707.01390v1-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 July, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2017. </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">18 pages, 13 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Chemistry Chemical Physics, 2017 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1601.04728">arXiv:1601.04728</a> <span> [<a href="https://arxiv.org/pdf/1601.04728">pdf</a>, <a href="https://arxiv.org/format/1601.04728">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Biological Physics">physics.bio-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/10.1103/PhysRevE.93.022414">10.1103/PhysRevE.93.022414 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Superradiance at the localization-delocalization crossover in tubular chlorosomes </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Molina%2C+R+A">Rafael A. Molina</a>, <a href="/search/physics?searchtype=author&query=Benito-Mat%C3%ADas%2C+E">Enrique Benito-Mat铆as</a>, <a href="/search/physics?searchtype=author&query=Somoza%2C+A">Alejandro Somoza</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+L">Lipeng Chen</a>, <a href="/search/physics?searchtype=author&query=Zhao%2C+Y">Yang Zhao</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="1601.04728v1-abstract-short" style="display: inline;"> We study the effect of disorder on spectral properties of tubular chlorosomes in green sulfur bacteria Cf. aurantiacus. Employing a Frenkel-exciton Hamiltonian with diagonal and off-diagonal disorder consistent with spectral and structural studies, we analyze excitonic localization and spectral statistics of the chlorosomes. A size-dependent localization-delocalization crossover is found to occur… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.04728v1-abstract-full').style.display = 'inline'; document.getElementById('1601.04728v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1601.04728v1-abstract-full" style="display: none;"> We study the effect of disorder on spectral properties of tubular chlorosomes in green sulfur bacteria Cf. aurantiacus. Employing a Frenkel-exciton Hamiltonian with diagonal and off-diagonal disorder consistent with spectral and structural studies, we analyze excitonic localization and spectral statistics of the chlorosomes. A size-dependent localization-delocalization crossover is found to occur as a function of the excitonic energy. The crossover energy region coincides with the more optically active states with maximized superradiance, and is, consequently, more conducive for energy transfer. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.04728v1-abstract-full').style.display = 'none'; document.getElementById('1601.04728v1-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> 7 December, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2016. </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, 5 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. E 93, 022414 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1506.08086">arXiv:1506.08086</a> <span> [<a href="https://arxiv.org/pdf/1506.08086">pdf</a>, <a href="https://arxiv.org/format/1506.08086">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Gases">cond-mat.quant-gas</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Chaotic Dynamics">nlin.CD</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-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/10.1103/PhysRevE.92.042906">10.1103/PhysRevE.92.042906 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Spectral statistics of molecular resonances in erbium isotopes: How chaotic are they? </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Mur-Petit%2C+J">J. Mur-Petit</a>, <a href="/search/physics?searchtype=author&query=Molina%2C+R+A">R. A. Molina</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="1506.08086v2-abstract-short" style="display: inline;"> We perform a comprehensive analysis of the spectral statistics of the molecular resonances in $^{166}$Er and $^{168}$Er observed in recent ultracold collision experiments [Frisch et al., Nature {\bf 507}, 475 (2014)] with the aim of determining the chaoticity of this system. We calculate different independent statistical properties to check their degree of agreement with random matrix theory (RMT)… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1506.08086v2-abstract-full').style.display = 'inline'; document.getElementById('1506.08086v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1506.08086v2-abstract-full" style="display: none;"> We perform a comprehensive analysis of the spectral statistics of the molecular resonances in $^{166}$Er and $^{168}$Er observed in recent ultracold collision experiments [Frisch et al., Nature {\bf 507}, 475 (2014)] with the aim of determining the chaoticity of this system. We calculate different independent statistical properties to check their degree of agreement with random matrix theory (RMT), and analyze if they are consistent with the possibility of having missing resonances. The analysis of the short-range fluctuations as a function of the magnetic field points to a steady increase of chaoticity until $B \sim 30$ G. The repulsion parameter decreases for higher magnetic fields, an effect that can be interpreted as due to missing resonances. The analysis of long-range fluctuations allows us to be more quantitative and estimate a $20-25\%$ fraction of missing levels. Finally, a study of the distribution of resonance widths provides additional evidence supporting missing resonances of small width compared with the experimental magnetic field resolution. We conclude that further measurements with increased resolution will be necessary to give a final answer to the problem of missing resonances and the agreement with RMT. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1506.08086v2-abstract-full').style.display = 'none'; document.getElementById('1506.08086v2-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 October, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 June, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2015. </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, 6 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. E 92, 042906 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1405.2205">arXiv:1405.2205</a> <span> [<a href="https://arxiv.org/pdf/1405.2205">pdf</a>, <a href="https://arxiv.org/format/1405.2205">other</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="Quantum Gases">cond-mat.quant-gas</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/10.1103/PhysRevB.90.035434">10.1103/PhysRevB.90.035434 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Chiral bound states in the continuum </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Mur-Petit%2C+J">Jordi Mur-Petit</a>, <a href="/search/physics?searchtype=author&query=Molina%2C+R+A">Rafael A. Molina</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="1405.2205v2-abstract-short" style="display: inline;"> We present a distinct mechanism for the formation of bound states in the continuum (BICs). In chiral quantum systems there appear zero-energy states in which the wave function has finite amplitude only in one of the subsystems defined by the chiral symmetry. When the system is coupled to leads with a continuum energy band, part of these states remain bound. We derive some algebraic rules for the n… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.2205v2-abstract-full').style.display = 'inline'; document.getElementById('1405.2205v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1405.2205v2-abstract-full" style="display: none;"> We present a distinct mechanism for the formation of bound states in the continuum (BICs). In chiral quantum systems there appear zero-energy states in which the wave function has finite amplitude only in one of the subsystems defined by the chiral symmetry. When the system is coupled to leads with a continuum energy band, part of these states remain bound. We derive some algebraic rules for the number of these states depending on the dimensionality and rank of the total Hamiltonian. We examine the transport properties of such systems including the appearance of Fano resonances in some limiting cases. Finally, we discuss experimental setups based on microwave dielectric resonators and atoms in optical lattices where these predictions can be tested. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.2205v2-abstract-full').style.display = 'none'; document.getElementById('1405.2205v2-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 July, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 May, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2014. </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, 8 figures. v2: includes results specific to honeycomb lattice; matches published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. B 90, 035434 (2014) </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg> <a href="https://info.arxiv.org/help/contact.html"> Contact</a> </li> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>subscribe to arXiv mailings</title><desc>Click here to subscribe</desc><path d="M476 3.2L12.5 270.6c-18.1 10.4-15.8 35.6 2.2 43.2L121 358.4l287.3-253.2c5.5-4.9 13.3 2.6 8.6 8.3L176 407v80.5c0 23.6 28.5 32.9 42.5 15.8L282 426l124.6 52.2c14.2 6 30.4-2.9 33-18.2l72-432C515 7.8 493.3-6.8 476 3.2z"/></svg> <a href="https://info.arxiv.org/help/subscribe"> Subscribe</a> </li> </ul> </div> </div> </div>   <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/license/index.html">Copyright</a></li> <li><a href="https://info.arxiv.org/help/policies/privacy_policy.html">Privacy Policy</a></li> </ul> </div> <div class="column sorry-app-links"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/web_accessibility.html">Web Accessibility Assistance</a></li> <li> <p class="help"> <a class="a11y-main-link" href="https://status.arxiv.org" target="_blank">arXiv Operational Status <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 512" class="icon filter-dark_grey" role="presentation"><path d="M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z"/></svg></a><br> Get status notifications via <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/email/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg>email</a> or <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/slack/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" class="icon filter-black" role="presentation"><path d="M94.12 315.1c0 25.9-21.16 47.06-47.06 47.06S0 341 0 315.1c0-25.9 21.16-47.06 47.06-47.06h47.06v47.06zm23.72 0c0-25.9 21.16-47.06 47.06-47.06s47.06 21.16 47.06 47.06v117.84c0 25.9-21.16 47.06-47.06 47.06s-47.06-21.16-47.06-47.06V315.1zm47.06-188.98c-25.9 0-47.06-21.16-47.06-47.06S139 32 164.9 32s47.06 21.16 47.06 47.06v47.06H164.9zm0 23.72c25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06H47.06C21.16 243.96 0 222.8 0 196.9s21.16-47.06 47.06-47.06H164.9zm188.98 47.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06h-47.06V196.9zm-23.72 0c0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06V79.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06V196.9zM283.1 385.88c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06v-47.06h47.06zm0-23.72c-25.9 0-47.06-21.16-47.06-47.06 0-25.9 21.16-47.06 47.06-47.06h117.84c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06H283.1z"/></svg>slack</a> </p> </li> </ul> </div> </div> </div>  </div> </footer> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/member_acknowledgement.js"></script> </body> </html>

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