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 while non-compact zero modes in bosonic systems cause unbounded logarithmic growth of entanglement entropy, compact zero modes in systems like quantum rotors halt this spreading and dephasing, thereby capping entanglement at a finite value and revealing the necessity of compact descriptions for accurately modeling late-time dynamics in ultracold-atom realizations.
This paper demonstrates a scalable optical tweezer platform using holographic metasurfaces to trap over 1,000 single strontium atoms in arbitrary 2D geometries with high uniformity, achieving a record 360,000 traps to enable large-scale quantum applications.
This paper introduces an efficient perfect sampling method based on determinantal point processes to quantify non-stabilizerness in fermionic Gaussian states, revealing extensive scaling behavior, logarithmic convergence in random circuits, and sharp phase transitions in topological models for systems with hundreds of qubits.
This paper demonstrates that ultracold quantum gases with externally modulated scattering lengths exhibit a novel cyclic hydrodynamic attractor during oscillating isotropic expansion, extending the concept of hydrodynamic attractors beyond the previously studied monotonic expansion scenarios.
This paper establishes that local frustration centers in itinerant fermion systems bind singlets while sharing a delocalized hole, providing a general principle to systematically shape magnetic order and tune net magnetization across various lattice topologies, from grids to random graphs, with a proposed protocol for experimental realization in cold-atom setups.
This paper investigates the multi-species nonreciprocal Dicke model by employing a Redfield master equation to derive effective spin-only dynamics, revealing a dynamical limit-cycle phase with phase coexistence near an exceptional point and validating these mean-field predictions through exact numerical diagonalization of small systems.
This paper demonstrates a robust, high-flux strontium source capable of producing quasi-continuous sub-microkelvin samples without a high-finesse cavity-stabilized laser, utilizing instead a dispersion-optimized fiber frequency comb referenced to either a metrology-grade RF signal or a tunable source stabilized by a magneto-optical trap.
This paper experimentally demonstrates that a well-isolated cold-atom system can realize relational time by constructing an entropic clock from internal degrees of freedom, which successfully orders dynamical events and reproduces the system's evolution via an effective Schrödinger equation.
This paper demonstrates that spin-orbit coupled exciton-polariton condensates in a ring configuration can exhibit a controllable dynamical switching of circular polarization via a weakly-nonlinear Josephson junction, offering a promising platform for scalable all-optical spin-switch applications.
This paper introduces SciExplorer, a large language model-based agent capable of autonomously discovering the laws of unknown physical systems through iterative experimentation and code execution without requiring domain-specific tuning or instructions.