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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/2408.02010">arXiv:2408.02010</a> <span> [<a href="https://arxiv.org/pdf/2408.02010">pdf</a>, <a href="https://arxiv.org/format/2408.02010">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Strongly Correlated Electrons">cond-mat.str-el</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/SciPostPhysCodeb.41">10.21468/SciPostPhysCodeb.41 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Tensor Network Python (TeNPy) version 1 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Hauschild%2C+J">Johannes Hauschild</a>, <a href="/search/cond-mat?searchtype=author&query=Unfried%2C+J">Jakob Unfried</a>, <a href="/search/cond-mat?searchtype=author&query=Anand%2C+S">Sajant Anand</a>, <a href="/search/cond-mat?searchtype=author&query=Andrews%2C+B">Bartholomew Andrews</a>, <a href="/search/cond-mat?searchtype=author&query=Bintz%2C+M">Marcus Bintz</a>, <a href="/search/cond-mat?searchtype=author&query=Borla%2C+U">Umberto Borla</a>, <a href="/search/cond-mat?searchtype=author&query=Divic%2C+S">Stefan Divic</a>, <a href="/search/cond-mat?searchtype=author&query=Drescher%2C+M">Markus Drescher</a>, <a href="/search/cond-mat?searchtype=author&query=Geiger%2C+J">Jan Geiger</a>, <a href="/search/cond-mat?searchtype=author&query=Hefel%2C+M">Martin Hefel</a>, <a href="/search/cond-mat?searchtype=author&query=H%C3%A9mery%2C+K">K茅vin H茅mery</a>, <a href="/search/cond-mat?searchtype=author&query=Kadow%2C+W">Wilhelm Kadow</a>, <a href="/search/cond-mat?searchtype=author&query=Kemp%2C+J">Jack Kemp</a>, <a href="/search/cond-mat?searchtype=author&query=Kirchner%2C+N">Nico Kirchner</a>, <a href="/search/cond-mat?searchtype=author&query=Liu%2C+V+S">Vincent S. Liu</a>, <a href="/search/cond-mat?searchtype=author&query=M%C3%B6ller%2C+G">Gunnar M枚ller</a>, <a href="/search/cond-mat?searchtype=author&query=Parker%2C+D">Daniel Parker</a>, <a href="/search/cond-mat?searchtype=author&query=Rader%2C+M">Michael Rader</a>, <a href="/search/cond-mat?searchtype=author&query=Romen%2C+A">Anton Romen</a>, <a href="/search/cond-mat?searchtype=author&query=Scalet%2C+S">Samuel Scalet</a>, <a href="/search/cond-mat?searchtype=author&query=Schoonderwoerd%2C+L">Leon Schoonderwoerd</a>, <a href="/search/cond-mat?searchtype=author&query=Schulz%2C+M">Maximilian Schulz</a>, <a href="/search/cond-mat?searchtype=author&query=Soejima%2C+T">Tomohiro Soejima</a>, <a href="/search/cond-mat?searchtype=author&query=Thoma%2C+P">Philipp Thoma</a>, <a href="/search/cond-mat?searchtype=author&query=Wu%2C+Y">Yantao Wu</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="2408.02010v3-abstract-short" style="display: inline;"> TeNPy (short for 'Tensor Network Python') is a python library for the simulation of strongly correlated quantum systems with tensor networks. The philosophy of this library is to achieve a balance of readability and usability for new-comers, while at the same time providing powerful algorithms for experts. The focus is on MPS algorithms for 1D and 2D lattices, such as DMRG ground state search, as… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.02010v3-abstract-full').style.display = 'inline'; document.getElementById('2408.02010v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2408.02010v3-abstract-full" style="display: none;"> TeNPy (short for 'Tensor Network Python') is a python library for the simulation of strongly correlated quantum systems with tensor networks. The philosophy of this library is to achieve a balance of readability and usability for new-comers, while at the same time providing powerful algorithms for experts. The focus is on MPS algorithms for 1D and 2D lattices, such as DMRG ground state search, as well as dynamics using TEBD, TDVP, or MPO evolution. This article is a companion to the recent version 1.0 release of TeNPy and gives a brief overview of the package. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.02010v3-abstract-full').style.display = 'none'; document.getElementById('2408.02010v3-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 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 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">v3: published version with small additional clarifications suggested by referees</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> SciPost Phys. Codebases 41 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.03304">arXiv:2405.03304</a> <span> [<a href="https://arxiv.org/pdf/2405.03304">pdf</a>, <a href="https://arxiv.org/format/2405.03304">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> </div> </div> <p class="title is-5 mathjax"> Verification of Perrin's theory of the motion of dilute spheroidal colloids </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Geiger%2C+J+D">John David Geiger</a>, <a href="/search/cond-mat?searchtype=author&query=Alhissi%2C+M">Mohammed Alhissi</a>, <a href="/search/cond-mat?searchtype=author&query=Voggenreiter%2C+M">Markus Voggenreiter</a>, <a href="/search/cond-mat?searchtype=author&query=Fuchs%2C+M">Matthias Fuchs</a>, <a href="/search/cond-mat?searchtype=author&query=Zumbusch%2C+A">Andreas Zumbusch</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="2405.03304v1-abstract-short" style="display: inline;"> Brownian motion is of central importance for understanding diffusive transport in biology, chemistry, and physics. For spherical particles, the theory was developed by Einstein, whereas a theoretical description of the motion of spheroids was given by F. Perrin. Here, we report the systematic verification of Perrin's theory 90 years after its publication. To this end, we synthesized oblate and pro… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.03304v1-abstract-full').style.display = 'inline'; document.getElementById('2405.03304v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.03304v1-abstract-full" style="display: none;"> Brownian motion is of central importance for understanding diffusive transport in biology, chemistry, and physics. For spherical particles, the theory was developed by Einstein, whereas a theoretical description of the motion of spheroids was given by F. Perrin. Here, we report the systematic verification of Perrin's theory 90 years after its publication. To this end, we synthesized oblate and prolate core-shell spheroids with different aspect ratios and tracked their three-dimensional diffusive motion in high dilution using confocal fluorescence microscopy. The experimental data for the dependence of translational and rotational diffusion on aspect ratio are in excellent agreement with the theoretical predictions. The crossover dynamics from anisotropic to isotropic diffusion as a hallmark for translation rotation coupling are also found as predicted. This verifies Perrin's theory as a cornerstone for understanding diffusive transport and underlines the excellent suitability of the particle system for testing more detailed theory. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.03304v1-abstract-full').style.display = 'none'; document.getElementById('2405.03304v1-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 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">10 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/2401.11054">arXiv:2401.11054</a> <span> [<a href="https://arxiv.org/pdf/2401.11054">pdf</a>, <a href="https://arxiv.org/format/2401.11054">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="Quantum Gases">cond-mat.quant-gas</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/PhysRevLett.132.150605">10.1103/PhysRevLett.132.150605 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Fine-Structure Qubit Encoded in Metastable Strontium Trapped in an Optical Lattice </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Pucher%2C+S">S. Pucher</a>, <a href="/search/cond-mat?searchtype=author&query=Kl%C3%BCsener%2C+V">V. Kl眉sener</a>, <a href="/search/cond-mat?searchtype=author&query=Spriestersbach%2C+F">F. Spriestersbach</a>, <a href="/search/cond-mat?searchtype=author&query=Geiger%2C+J">J. Geiger</a>, <a href="/search/cond-mat?searchtype=author&query=Schindewolf%2C+A">A. Schindewolf</a>, <a href="/search/cond-mat?searchtype=author&query=Bloch%2C+I">I. Bloch</a>, <a href="/search/cond-mat?searchtype=author&query=Blatt%2C+S">S. Blatt</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="2401.11054v2-abstract-short" style="display: inline;"> We demonstrate coherent control of the fine-structure qubit in neutral strontium atoms. This qubit is encoded in the metastable $^3\mathrm{P}_2$ and $^3\mathrm{P}_0$ states, coupled by a Raman transition. Using a magnetic quadrupole transition, we demonstrate coherent state-initialization of this THz qubit. We show Rabi oscillations with more than 60 coherent cycles and single-qubit rotations on t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.11054v2-abstract-full').style.display = 'inline'; document.getElementById('2401.11054v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.11054v2-abstract-full" style="display: none;"> We demonstrate coherent control of the fine-structure qubit in neutral strontium atoms. This qubit is encoded in the metastable $^3\mathrm{P}_2$ and $^3\mathrm{P}_0$ states, coupled by a Raman transition. Using a magnetic quadrupole transition, we demonstrate coherent state-initialization of this THz qubit. We show Rabi oscillations with more than 60 coherent cycles and single-qubit rotations on the $渭$s scale. With spin-echo, we demonstrate coherence times of tens of ms. Our results pave the way for fast quantum information processors and highly tunable quantum simulators with two-electron atoms. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.11054v2-abstract-full').style.display = 'none'; document.getElementById('2401.11054v2-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 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 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">5 pages, 4 figures, 4 pages supplemental material</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review Letters 132, 150605 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.01956">arXiv:2401.01956</a> <span> [<a href="https://arxiv.org/pdf/2401.01956">pdf</a>, <a href="https://arxiv.org/format/2401.01956">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</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/10.1063/5.0205459">10.1063/5.0205459 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Decoupling of rotation and translation at the colloidal glass transition </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Geiger%2C+J">John Geiger</a>, <a href="/search/cond-mat?searchtype=author&query=Grimm%2C+N">Niklas Grimm</a>, <a href="/search/cond-mat?searchtype=author&query=Fuchs%2C+M">Matthis Fuchs</a>, <a href="/search/cond-mat?searchtype=author&query=Zumbusch%2C+A">Andreas Zumbusch</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="2401.01956v1-abstract-short" style="display: inline;"> Little is known about the coupling of rotation and translation in dense systems. Here, we report results of confocal fluorescence microscopy where simultaneous recording of translational and rotational particle trajectories from a bidisperse colloidal dispersion is achieved by spiking the samples with rotational probe particles. The latter consist of colloidal particles containing two fluorescentl… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.01956v1-abstract-full').style.display = 'inline'; document.getElementById('2401.01956v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.01956v1-abstract-full" style="display: none;"> Little is known about the coupling of rotation and translation in dense systems. Here, we report results of confocal fluorescence microscopy where simultaneous recording of translational and rotational particle trajectories from a bidisperse colloidal dispersion is achieved by spiking the samples with rotational probe particles. The latter consist of colloidal particles containing two fluorescently labelled cores suited for tracking the particle's orientation. A comparison of the experimental data with event driven Brownian simulations gives insight into the system's structure and dynamics close to the glass transition and sheds new light onto the translation-rotation coupling. The data show that with increasing volume fractions, translational dynamics slows down drastically, whereas rotational dynamics changes very little. We find convincing agreement between simulation and experiments, even though the simulations neglect far-field hydrodynamic interactions. An additional analysis of the glass transition following mode coupling theory works well for the structural dynamics but indicates a decoupling of the diffusion of the smaller particle species. The shear stress correlations do not decorrelate in the simulated glass states and are not affected by rotational motion. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.01956v1-abstract-full').style.display = 'none'; document.getElementById('2401.01956v1-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 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">11 pages, 13 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. Chem. Phys. 161, 014507 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2301.00468">arXiv:2301.00468</a> <span> [<a href="https://arxiv.org/pdf/2301.00468">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="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/10.1038/s41467-023-39180-3">10.1038/s41467-023-39180-3 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Non-volatile electrically programmable integrated photonics with a 5-bit operation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/cond-mat?searchtype=author&query=Chen%2C+R">Rui Chen</a>, <a href="/search/cond-mat?searchtype=author&query=Fang%2C+Z">Zhuoran Fang</a>, <a href="/search/cond-mat?searchtype=author&query=Perez%2C+C">Christopher Perez</a>, <a href="/search/cond-mat?searchtype=author&query=Miller%2C+F">Forrest Miller</a>, <a href="/search/cond-mat?searchtype=author&query=Kumari%2C+K">Khushboo Kumari</a>, <a href="/search/cond-mat?searchtype=author&query=Saxena%2C+A">Abhi Saxena</a>, <a href="/search/cond-mat?searchtype=author&query=Zheng%2C+J">Jiajiu Zheng</a>, <a href="/search/cond-mat?searchtype=author&query=Geiger%2C+S+J">Sarah J. Geiger</a>, <a href="/search/cond-mat?searchtype=author&query=Goodson%2C+K+E">Kenneth E. Goodson</a>, <a href="/search/cond-mat?searchtype=author&query=Majumdar%2C+A">Arka Majumdar</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="2301.00468v1-abstract-short" style="display: inline;"> Scalable programmable photonic integrated circuits (PICs) can potentially transform the current state of classical and quantum optical information processing. However, traditional means of programming, including thermo-optic, free carrier dispersion, and Pockels effect result in either large device footprints or high static energy consumptions, significantly limiting their scalability. While chalc… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.00468v1-abstract-full').style.display = 'inline'; document.getElementById('2301.00468v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2301.00468v1-abstract-full" style="display: none;"> Scalable programmable photonic integrated circuits (PICs) can potentially transform the current state of classical and quantum optical information processing. However, traditional means of programming, including thermo-optic, free carrier dispersion, and Pockels effect result in either large device footprints or high static energy consumptions, significantly limiting their scalability. While chalcogenide-based non-volatile phase-change materials (PCMs) could mitigate these problems thanks to their strong index modulation and zero static power consumption, they often suffer from large absorptive loss, low cyclability, and lack of multilevel operation. Here, we report a wide-bandgap PCM antimony sulfide (Sb2S3)-clad silicon photonic platform simultaneously achieving low loss, high cyclability, and 5-bit operation. We switch Sb2S3 via an on-chip silicon PIN diode heater and demonstrate components with low insertion loss (<1.0 dB), high extinction ratio (>10 dB), and high endurance (>1,600 switching events). Remarkably, we find that Sb2S3 can be programmed into fine intermediate states by applying identical and thermally isolated pulses, providing a unique approach to controllable multilevel operation. Through dynamic pulse control, we achieve on-demand and accurate 5-bit (32 levels) operations, rendering 0.50 +- 0.16 dB contrast per step. Using this multilevel behavior, we further trim random phase error in a balanced Mach-Zehnder interferometer. Our work opens an attractive pathway toward non-volatile large-scale programmable PICs with low-loss and on-demand multi-bit operations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.00468v1-abstract-full').style.display = 'none'; document.getElementById('2301.00468v1-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 January, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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">22 pages, 6 figures in main text</span> </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> 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