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 presents a numerical Path Integral Monte Carlo study of bosonic, fermionic, and anyonic fluids in thermal equilibrium on a sphere, investigating how positive curvature influences thermodynamic properties, superfluidity, and particle path dynamics while addressing the sign problem via the restricted path integral method.
This paper establishes a general theory of boundary-driven non-Hermitian systems that extends non-Bloch band theory to time-periodic settings, demonstrating how boundary Floquet driving can control bulk spectral properties and induce parity-time symmetry breaking through tuning of driving frequency and amplitude.
This paper proposes "Dicke materials," a class of magnetic systems exhibiting a superradiant phase transition, as a robust resource for quantum squeezing that remains stable against finite temperature, disorder, and local interactions, thereby offering a promising platform for quantum metrology and entanglement detection in solid-state systems.
This paper reports a novel mechanism in one-dimensional Floquet systems where a time-periodic driving protocol induces boundary-sensitive PT symmetry breaking and scale-free localization, characterized by a spectral transition triggered when the quasienergy bandwidth covers the entire frequency Brillouin zone rather than by band touching.
This paper establishes the first PAC-Bayesian generalization bounds for a broad class of quantum models, including those with dissipative operations and symmetry constraints, by deriving non-uniform, data-dependent guarantees that overcome the limitations of traditional capacity-based uniform bounds.
This paper demonstrates that phase disorder in an expanding chain of Bose-Einstein condensates transforms the Talbot effect by introducing new peaks in the spatial density spectrum, which arise from pairwise interferences that are otherwise mutually destructive in the absence of disorder.
This paper demonstrates that periodically driving a one-dimensional superlattice with density-dependent hopping induces occupation-selective topological pumping, where two-body bound states acquire distinct Chern numbers and exhibit quantized transport driven by a dynamical gauge field mechanism, even when single-particle transport is trivial.
This paper proposes an experimentally feasible Rydberg-atom quantum simulation scheme to realize the Motzkin spin chain, demonstrating that the resulting system reproduces the model's characteristic non-area-law entanglement scaling and block-structure properties, thereby establishing a pathway for exploring exotic entangled phases beyond conventional numerical capabilities.
This paper demonstrates that resonant driving of the middle polariton branch in coupled cavities suppresses coherent Rabi oscillations in favor of monotonic relaxation, a regime that supports interacting Bogoliubov excitations with a phonon-like dispersion arising from the hybrid nature of intercavity polaritons.
This paper proposes and analyzes a theoretical model demonstrating how cavity-mediated long-range interactions in spinor quantum optical lattices can induce antiferromagnetic correlations in bosonic matter, thereby enabling the design of robust quantum information mechanisms through the manipulation of magnetic phases beyond natural atomic constraints.