656 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 tuning Rashba and Dresselhaus spin-orbit coupling in a honeycomb Zeeman lattice generates non-Abelian gauge fields that drive anomalous topological Bloch oscillations characterized by asymmetric motion and tunable freezing effects, offering new mechanisms for controlling topological quantum dynamics in spintronic and quantum information applications.
This paper demonstrates that polar molecules trapped in rearrangeable optical tweezer arrays serve as a versatile quantum simulator for realizing and microscopically probing coherent many-body dynamics in XXZ and XYZ spin models, including phenomena such as quantum walks, magnon bound states, and pair creation.
This paper introduces and characterizes various models of active quantum particles driven by engineered dissipation, demonstrating that despite diverse microscopic mechanisms, they universally exhibit a crossover from diffusive to active-diffusive motion and a strong sensitivity to boundary conditions via the Liouville skin effect, while also discussing their quantum fluctuations, experimental realizations, and many-body implications.
This paper investigates rotation-triggered Kelvin-Helmholtz and counter-superflow instabilities in a quasi-two-dimensional three-component Bose-Einstein condensate, demonstrating how selective rotation of the intermediate component enables independent tuning of shear and counterflow to control and distinguish between these instability mechanisms across different miscibility regimes.
This paper experimentally realizes a continuum analog of the Hatano-Nelson model in a spin-orbit coupled Bose-Einstein condensate by introducing tunable spin-dependent loss, demonstrating collective nonreciprocal transport and self-acceleration while revealing how strong interactions suppress topological edge states in favor of localized excited states.
This paper derives a non-perturbative effective Lindblad master equation for the motional dynamics of polarizable particles in optical cavities, providing a robust theoretical framework that accurately captures both steady-state and out-of-equilibrium behaviors across a wide range of temperatures and interaction strengths, thereby bridging statistical mechanics models with cavity-QED experiments for simulating long-range interacting quantum matter.
The authors demonstrate a continuous cloud position spectroscopy technique using a broadband magneto-optical trap on strontium's intercombination line that achieves frequency instability below after 400 seconds, surpassing conventional hot-vapor methods by combining high sensitivity with a large locking range.
This paper investigates the dynamics of vortex dipoles on surfaces of variable negative curvature, specifically a catenoid, demonstrating that their Hamiltonian motion follows geodesics, conserves a momentum map associated with azimuthal symmetry, and exhibits self-propulsion orthogonal to the dipole axis with speed modulated by curvature.
This paper derives and numerically validates an analog of the Lellouch-Lüscher relation for few-body bosonic systems, establishing a robust framework to link harmonically trapped state properties to scattering loss rates and enabling precise determination of multi-body scattering rates in confined ultracold experiments.
This paper presents a numerically exact two-body model of Kapitza-Dirac scattering for interacting ultracold atoms in a one-dimensional harmonic trap, revealing how interaction strength and lattice parameters reshape diffraction patterns and defining the limits of the impulsive sudden approximation.