662 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 characterizes Feshbach resonances in all lithium isotopologues by refining interaction potentials with spectroscopic data and threshold measurements, revealing that the heteronuclear system exhibits narrow, triplet-dominated resonances distinct from its homonuclear counterparts, thereby establishing a foundation for creating ultracold molecules across all isotopologues.
This study demonstrates that the Kosterlitz-Thouless transition temperature in uniformly confined superfluid He is accurately predicted by incorporating two-dimensional roton excitations into static and dynamical theories, thereby resolving long-standing discrepancies without relying on traditional coherence length scaling or ad-hoc free vortex contributions.
This study employs a unified Quantum Phase Space formalism to derive exact analytical expressions for the thermodynamics of confined ideal Fermi and Bose gases, revealing that nanoscale geometry induces intrinsic anisotropy and enables the manipulation of phase transitions through shape control alone.
This paper proposes a hybrid atom-cavity system where a Bose-Einstein condensate in higher Bloch bands undergoes a first-order transition into a self-organized topological superfluid state with symmetry driven by transverse pump strength.
This paper reports the numerical observation of a universal far-from-equilibrium equation of state in the Gross-Pitaevskii model, demonstrating that in a regime of mixed turbulence, the momentum distribution amplitude scales with the energy flux to the power of approximately 0.67, a finding that extends the concept of quasi-static thermodynamic processes to non-equilibrium steady states.
This paper proposes a -Learning approach that combines artificial intelligence with the cluster Gutzwiller approximation to accurately predict phase diagrams of strongly correlated bosonic systems by learning discrepancies between small and large cluster sizes, thereby overcoming computational limitations and outperforming direct learning methods with limited training data.
This paper mathematically establishes the stability of a self-interacting almost-bosonic anyon gas by demonstrating that supersymmetric ground states, which manifest as explicit solitonic vortex solutions solving a generalized Liouville equation, exist precisely at even-integer quantized values of the magnetic coupling.
This paper proposes a universal criterion for identifying multifractal critical states in disordered quantum systems by demonstrating that they uniquely exhibit dual-space invariance between position and momentum, a property revealed through matching scaling behaviors of the inverse participation ratio that distinguishes them from extended and localized states.
This paper proposes a theoretical model for a two-dimensional Moiré time crystal formed by ultracold atoms in a non-lattice trap under periodic perturbations, which exhibits regional superfluid states with Moiré-scale quantum coherence across temporal, spatial, and spatiotemporal domains, offering a new pathway to engineer spatial Moiré phases without twisted multilayer lattices.
This paper presents a validated first-principles Monte Carlo simulation of light-mediated dynamics in tweezer-trapped erbium atoms, which is used to optimize single-atom preparation by evaluating the efficiency and fidelity of different light-assisted collision transitions.