658 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 demonstrates that coupling a localized impurity to an integrable one-dimensional Bose gas induces unconventional low-energy quantum chaos driven by diffraction, a phenomenon that contradicts the typical high-energy emergence of chaos predicted by the Bohigas–Giannoni–Schmit conjecture.
This paper demonstrates that the truncated Wigner approach can naturally incorporate Lee-Huang-Yang corrections for ultracold Bose gases by tailoring bare interaction parameters, thereby capturing quantum fluctuation effects and correlation dynamics that standard mean-field and extended Gross-Pitaevskii equation formulations fail to describe, particularly in regimes of strong interaction.
This paper presents a quantitative spectral study of unitary Fermi gases using an advanced pairing fluctuation theory with self-consistent feedback to explain recent experimental evidence of a pairing-induced pseudogap.
This paper investigates the transition from tomographic to conventional transport in two-dimensional Fermi liquids under a magnetic field by using a numerically exact solution of the linearized Boltzmann equation to demonstrate that a critical magnetic field causes one of two diffusive tomographic collective modes to disappear, leaving a remaining mode that becomes increasingly hydrodynamic at higher fields.
This review surveys universality in driven open quantum matter, employing a Lindblad-Keldysh field theory framework to discuss principles distinguishing equilibrium from nonequilibrium stationary states and categorizing universal phenomena into paradigmatic nonequilibrium realizations, novel nonequilibrium universality, and genuinely quantum nonequilibrium effects.
This paper demonstrates that a Dynamical Chiral Spin Liquid (DCSL) with Z2 topological order can be stabilized at finite driving frequencies on a square lattice, where the high-frequency Magnus expansion fails, by showing that the system remains in a stationary regime characterized by specific Floquet quasi-energy features and a tensor network representation with Z2 gauge symmetry, until a critical frequency is reached where heating and chaotic behavior ensue.
This paper investigates the localization transition of interacting particles in one-dimensional correlated disorder with vanishing backward scattering, using renormalization group methods and numerical simulations to demonstrate that the transition point shifts to the non-interacting limit and that the localization length scaling deviates from conventional behavior.
This paper demonstrates that a driven-dissipative system coupling the Landau levels of a charge-neutral particle in a synthetic gauge potential to a quantized optical cavity can be effectively modeled as two highly nonlinearly coupled quantum harmonic oscillators, giving rise to hybrid "Landau polaritons" with unique entanglement, squeezing, and diverse nonequilibrium dynamics.
Using time-dependent density functional theory, this study reveals how impurity density and size govern the dissipation of persistent currents in fermionic superfluid rings by modulating the critical winding number for vortex emission and establishing distinct mobility regimes below and above the pair-breaking threshold.
This paper proposes that triangular optical ladders hosting itinerant polarized dipolar bosons or pinned spin-1/2 dipoles provide a versatile platform for observing spontaneous chirality and exploring rich ground-state landscapes, including chiral superfluids and nematic phases, by leveraging geometric frustration to amplify dipolar interactions.