668 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 and analyzes a trapped-ion quantum simulator for the Jackiw-Rebbi model that investigates the real-time dynamics of fractional charges by incorporating fermionic back-reaction and quantum fluctuations, revealing how these effects influence kink localization and scattering beyond fixed-background approximations.
This paper demonstrates that an experimentally feasible system of ultracold bosonic atoms on a ring with rapidly oscillating scattering length can simulate a time-independent two-component atomic mixture featuring exotic, long-range interactions through resonant periodic driving.
This paper formulates a complex-valued induced potential between two heavy impurities in a finite-temperature ultracold atomic medium, demonstrating that its universal long-range imaginary component () causes decoherence in both normal fermionic and superfluid phases, and proposes three experimental methods to observe this effect.
This paper resolves discrepancies between theory and experiment in resonant light scattering by demonstrating that interferometric measurements of complex transmission through an ultracold atomic slab align well with first-principles simulations of mutually coupled dipoles.
This paper establishes a diagrammatic framework for dissipative interacting fermions exhibiting the non-Hermitian skin effect by deriving an exact integral representation of the self-energy via non-Bloch band theory and demonstrating that interactions lead to interaction-enhanced skin effects through the renormalization of the generalized Brillouin zone.
This paper generalizes the Loschmidt echo and out-of-time-order correlator to open quantum systems under Lindblad dynamics, revealing universal scrambling behaviors across dissipation regimes, establishing a link between OTOC and Rényi entropy, and proposing an experimental protocol for measurement.
This paper performs an asymptotic analysis of massive point-vortex dynamics in Bose–Einstein condensates in the small-mass limit, establishing that the system remains close to standard massless vortex dynamics for short times and deriving a normal form via Lie transformations that characterizes the coupling between slow and fast oscillatory modes in the two-vortex case.
This paper introduces a cavity array microscope that utilizes a novel free-space geometry with intra-cavity lenses to enable strong, parallel coupling between individual atoms and over 40 (and up to 500) distinct cavity modes, thereby overcoming previous scalability limitations to facilitate fast, non-destructive readout and large-scale quantum networking without requiring nanophotonic elements.
This paper proposes and analyzes a quantum optimal control scheme using time-dependent magnetic field orientation to engineer entangled circulation states in ultracold atoms on a lattice ring, demonstrating that the method achieves perfect fidelity across a wide range of systems or reaches theoretical upper bounds in remaining cases.
This paper introduces the concept of Generalized Brillouin Zone (GBZ) fragmentation, demonstrating that in generic non-Hermitian systems with multiple skin modes, the GBZ becomes non-unique and leads to complex superpositions of skin states that fundamentally challenge traditional phase transition definitions and induce universal edge localization in thermal ensembles.