665 papers
This category explores the fascinating world of quantum gases, where scientists cool atoms to temperatures near absolute zero to create exotic states of matter. In these extreme conditions, individual atoms begin to behave like a single giant wave, revealing strange quantum effects that are usually hidden in our everyday warm world. These experiments help researchers understand the fundamental rules governing matter and could one day lead to revolutionary new technologies like ultra-precise sensors or quantum computers.
On Gist.Science, we process every new preprint in this field directly from arXiv to make these complex discoveries accessible to everyone. Our team provides both plain-language overviews for the curious mind and detailed technical summaries for experts, ensuring you get the full picture without getting lost in the jargon. Below are the latest papers from arXiv in Cond-Mat — Quant-Gas, freshly summarized and ready for you to explore.
This paper numerically demonstrates that a finite-time thermodynamic refrigeration cycle, implemented via time-dependent potential barriers in three spatially separated, weakly interacting Bose-Einstein condensates, successfully achieves cumulative cooling of approximately 27% over two cycles despite mass transfer and sound excitations.
This paper experimentally demonstrates an analogue of the optical Maxwell fish-eye lens using phononic excitations in a Bose-Einstein condensate, successfully engineering a tunable spatially varying speed of sound to achieve perfect wave focusing and validate theoretical predictions.
This paper proposes a generalized framework using interacting -level atomic ensembles to enhance the detection of gravitationally induced quantum effects, while demonstrating that such dynamics can be simulated via a network of dipolar Bose-Einstein condensates to create a programmable analogue platform for exploring gravitating quantum systems.
By measuring the enhanced damping of collective oscillations in a turbulent spin-1 Bose-Einstein condensate, researchers demonstrate that superfluid turbulence increases momentum transport through direct energy transfer and modified thermal cloud interactions, establishing collective-mode damping as a sensitive probe for superfluid turbulence.
This paper numerically demonstrates that in a disordered, dimerized one-dimensional array of Rydberg atoms, both positional disorder and dimerization induce a unique localized phase characterized by Hilbert space fragmentation and an extensive fraction of Symmetry Protected Topological (SPT) states across the energy spectrum, distinct from standard many-body localization.
This paper introduces a rapid spectroscopic technique based on dimer-projection to measure contact parameters in a unitary Fermi gas on microsecond timescales, revealing that this feature dominates the clock shift and highlighting the significance of multichannel effects beyond universal predictions.
This study utilizes a damped Gross-Pitaevskii model of a pinned, rotating Bose-Einstein condensate to demonstrate that glitch-like perturbations can trigger a transition from Kolmogorov-like to Vinen-like turbulence, sustained by an anomalous energy injection mechanism driven by quantum pressure, thereby offering qualitative insights into vortex-mediated dynamics in neutron stars.
Using inhomogeneous Bogoliubov theory and diagrammatic perturbation theory, this paper calculates finite-temperature disorder corrections to the normal fluid density of weakly interacting Bose gases in arbitrary dimensions, providing closed analytical expressions up to quadratic order in disorder strength.
This paper presents a quantum-mechanical description demonstrating that microwave shielding enables ultracold polar molecules to exhibit universal Efimov physics, characterized by characteristic trimer binding energy scaling and a universal three-body parameter, which can be experimentally accessed via the sudden approximation.
This paper presents an exact integral formula for the multi-particle propagator of the one-dimensional Hubbard model, derived via the nested Bethe ansatz without the string hypothesis, which facilitates the explicit analysis of nonequilibrium dynamics for arbitrary finite-particle wave functions.