642 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 proposes a theoretical scheme to engineer time-dependent rank-2 tensor electric fields in a dipole-conserving Bose-Hubbard model via periodic driving, revealing that resonant dynamics are dominated by controllable photon-assisted splitting of large dipoles and movement of small dipoles.
This paper investigates the transient interference dynamics of a spin-1/2 particle in a two-dimensional disordered potential under uniform SU(2) gauge fields, revealing a unique momentum-offset backscattering peak that coexists with a coherent backscattering dip and providing a perturbative framework to explain its buildup, decay, and dephasing time.
This paper employs auxiliary-field quantum Monte Carlo simulations on a lattice to investigate the equation of state for Fermi and neutron polarons across cold atomic and nuclear physics regimes, providing stringent benchmarks for future research while utilizing a parametric matrix model to optimize lattice Hamiltonian parameters.
This paper presents a unified framework combining a graph neural network-based path-planning module and a phase-aware Weighted Gerchberg-Saxton algorithm to rapidly assemble large-scale, defect-free atom arrays of approximately 10,000 qubits within timescales shorter than the atoms' vacuum lifetime.
This paper investigates immiscible-to-miscible quenching instabilities in two-dimensional binary Bose-Einstein condensates of rubidium isotopes, revealing that the transition dynamics are driven by vortex production and sound waves, exhibit a bottleneck effect deviating from classical Kolmogorov turbulence scaling, and ultimately stabilize into a linear relationship between the miscibility parameter and the initial configuration.
This paper proposes an ultrafast, all-optical switching and memory platform that exploits a bistable phase transition between a photon superfluid and a supersolid in a driven-dissipative microcavity, where tunable nonlocal interactions engineered by a drifting 2D electron gas enable high-contrast, sub-femtojoule operation with reconfigurable spatial ordering.
This paper investigates the eigenstate entanglement entropy of mid-spectrum states in Bose-Hubbard models, deriving a volume-law coefficient via a generalized mean-field approach and revealing that while disorder does not alter the volume-law term, the subleading O(1) contribution exhibits distinct behaviors depending on particle-number conservation and local bosonic cutoffs.
This paper investigates many-body dynamical localization in a periodically driven interacting two-mode bosonic system, demonstrating how quantum interference suppresses transport in Fock space and induces a spectral crossover from random-matrix to Poisson statistics, analogous to Anderson localization and linked to discrete time crystals.
This paper demonstrates that a hybrid approach combining deep machine learning and classical computer vision can accurately reconstruct the full phase field and identify vortex charges in a two-dimensional Bose-Einstein condensate using only spatially resolved density measurements.
By leveraging a recently proposed non-Abelian eigenstate thermalization hypothesis, this paper derives a Kubo-Martin-Schwinger relation for SU(2)-symmetric quantum many-body systems, revealing that finite-size corrections to the fluctuation-dissipation theorem can be polynomially larger than usual in certain cases, a finding supported by numerical simulations of Heisenberg chains.