642 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 study investigates the dynamics of dipolar Dy Bose-Einstein condensate droplets in a double-well potential, revealing how spontaneous symmetry breaking, atom number, and interaction strength govern oscillatory behaviors and merger events following barrier removal.
This paper presents a lattice-regularized simulation of analogue black holes demonstrating that Hawking radiation induces a UV-finite, volume-law scaling in entanglement negativity, thereby encoding the spatial distribution of entangled pairs and offering a pathway to experimentally probe black-hole thermodynamics and unitarity.
This paper investigates the linear stability and dynamical behavior of quantum droplets in dipolar quasi-one-dimensional Bose-Einstein condensates within optical lattices, revealing that increasing dipole-dipole interactions enlarge the optimal droplet width and amplify oscillation amplitudes, while the presence of optical lattices induces quasi-periodic width variations and spatial density oscillations sensitive to lattice parameters.
This paper presents a hardware-efficient feedforward architecture that utilizes optical-phase-locking beat signal recycling to achieve robust, high-bandwidth (>30 dB) phase noise suppression from 10 kHz to 10 MHz, overcoming the latency limitations of traditional feedback-based optical phase locking for ultra-narrow-linewidth laser cloning.
This paper explores the unique properties and experimental potential of strongly dipolar molecular Bose-Einstein condensates, outlining achievable parameter regimes, suitable molecular species, and the extension of beyond mean-field theories to advance the understanding of dipolar quantum fluids and exotic many-body states.
This review provides a pedagogical introduction to Lieb-Schultz-Mattis (LSM) anomalies and anomaly matching, extending the discussion from quantum spin chains to higher dimensions, disordered systems, fermionic systems, and cases involving nontrivial symmetry-protected topological phases.
This paper establishes a spectral framework demonstrating that continuously monitored quantum many-body systems, despite evolving to a trivial infinite-temperature state, exhibit anomalous waiting-time distributions in their subsystems governed by a specific superoperator eigenvalue that persists in the thermodynamic limit under strong measurement, offering a novel, postselection-free experimental diagnostic for many-body effects.
This paper investigates the nonequilibrium dynamics of a triad of fermionic superfluids in a multi-terminal Josephson junction under sudden two-body loss, revealing that dissipation induces a two-step or simultaneous nonequilibrium dynamical phase transition characterized by the vanishing of dc Josephson currents depending on the inter-superfluid tunneling strength.
This paper demonstrates that nonlinearity-induced lattice reconstruction in quasiperiodic systems enables controllable switching between quasi-quantized topological pumping, drifting, and localization of gap solitons, governed by emergent topological structures and critical rational approximants.
This paper demonstrates the use of ultracold RbCs molecules to encode a 1D synthetic lattice in their rotational states, successfully realizing the Su-Schrieffer-Heeger model with long coherence times and full site-resolved readout to probe and verify the stability of topological edge states against various perturbations.