639 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 study investigates the finite-temperature phase diagram of two-dimensional soft-core bosons using self-consistent Hartree-Fock and quantum Monte Carlo methods, identifying a broad supersolid phase and a potential intermediate hexatic phase while validating mean-field theory as an effective tool for analyzing these transitions.
This paper theoretically derives and numerically simulates the elastic bulk modulus of three-dimensional quantum droplets, establishing its relationship with intrinsic vibration eigenfrequencies and particle interactions to provide a realistic physical value for future experimental verification.
This paper investigates the entanglement asymmetry of free fermions on a honeycomb lattice with sublattice energy imbalance, revealing that the asymmetry exhibits nonanalytic dependence on the imbalance due to Dirac points and persists after a quench to the symmetric point because of a flat energy dispersion in a specific direction.
This paper investigates how interaction asymmetry modifies the mean-field yrast spectrum of a two-component Bose gas in a ring, revealing that the emergence and stability of fractional-angular-momentum plane-wave states depend critically on whether intra-component interactions are weaker or stronger than inter-component interactions, leading to either continuous evolution or branch-crossing mechanisms.
This study investigates the non-equilibrium dynamics of a one-dimensional two-component anyon-Hubbard model mapped to an extended Bose-Hubbard ladder, revealing that the interplay of anyonic statistics, synthetic gauge flux, and interactions induces asymmetric transport, dynamical symmetries, and tunable chiral or antichiral expansion behaviors.
This paper investigates how vortex-antivortex dipoles disrupt the spherical symmetry of expanding shell-shaped Bose-Einstein condensates, revealing that increasing dipole separation induces non-monotonic changes in the cloud's aspect ratio due to the interplay between vortex physics and curvature.
This paper proposes a unified framework called the "topological word," which uses an ordered sequence of non-Abelian charges to fully characterize the bulk-boundary correspondence in multigap non-Abelian topological insulators by capturing both global homotopy topology and crucial band-adjacency information, a method validated across static and Floquet systems that remains insightful even when global topology is ill-defined.
This paper demonstrates that while infinite-temperature density-density correlations in interacting hard-core anyons remain insensitive to fractional statistics and follow standard XXZ transport regimes, single-particle Green's functions exhibit a pronounced interaction-induced left-right asymmetry and statistical-angle-dependent decay, revealing dynamical correlations as direct probes of fractional statistics in high-entropy quantum systems.
This paper introduces the "perceptrain," a hybrid variational ansatz combining deep neural networks and tensor networks to efficiently and accurately simulate the ground states of complex quantum many-body systems, such as the Rydberg atom Ising model, with high precision and robust optimization using significantly fewer parameters than traditional methods.
This paper proposes and simulates a dynamical protocol using quasi-one-dimensional double-well potentials to distinguish the rigidity and phase coherence of dipolar supersolids from other phases by observing damped crystal oscillations and second sound excitations triggered by merging fragments and phase-imprinted jumps.