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 paper presents a theoretical study demonstrating that three-body resonances can be stabilized into bound states in a continuum with infinite lifetimes through the continuous tuning of system parameters, such as an external magnetic field, a mechanism validated in both mass-imbalanced one-dimensional and identical boson three-dimensional systems.
This paper introduces an exact entanglement entropy-based framework that robustly identifies topological phase transitions in disordered Su-Schrieffer-Heeger models by leveraging the vanishing difference in entropy between half-filled and near-half-filled states to distinguish genuine topological edge states from trivial localized states.
This paper investigates the quantum dynamics of single and paired spin-J particles in static and rotating magnetic fields, revealing resonant oscillations between stretched states and demonstrating how entanglement kinks in spin-1/2 pairs can be engineered via dipole-dipole interactions for applications in qudit-based quantum technologies.
This paper pioneers the direct experimental measurement of the non-Abelian quantum geometric tensor in a six-band photonic lattice using a novel orbital-resolved polarimetry technique, thereby enabling the characterization of non-Abelian quaternion charges, Euler curvature, and quantum metrics to unlock the study of complex multi-gap topological phases.
This paper investigates the dynamics of a mobile impurity driven by a constant force through a one-dimensional weakly interacting Bose gas, revealing that the interplay of interactions and driving forces induces Bloch oscillations via the periodic emission of density waves and solitons, which persist until a critical force threshold triggers unlimited acceleration.
This paper investigates interaction-quench-induced collective excitations in harmonically trapped two-dimensional Bose-Einstein condensates using numerical and analytical methods, revealing a breakdown of scale invariance at low energies and characterizing trap-associated acoustic modes at high energies to provide an experimentally accessible spectroscopy of these many-body states.
By combining thermal field theory and statistical mechanics, this paper reexamines the relativistic Barnett effect in a rigidly rotating free Fermi gas, demonstrating that spin-rotation coupling induces spin polarization and a magnetic susceptibility proportional to the moment of inertia, which exhibits Curie-like behavior in the high-temperature limit.
This paper reports the direct observation of roton emission from a single quantized vortex in superfluid helium-4 at 10 mK, identifying it as the primary mechanism for zero-temperature energy dissipation in strongly correlated quantum liquids.
This paper demonstrates that in scale-invariant quantum gases with SO(2,1) symmetry, the amplitude of breathing mode oscillations provides a direct, universal, and protocol-independent quantitative probe of energy fluctuations, governed solely by the system's underlying symmetry and the Bargmann index.
This paper reports the in-situ observation of a magnetostriction crossover from an anisotropic superfluid to an isotropic normal phase in a quasi-two-dimensional dysprosium gas, supported by a new mean-field framework that enables precise thermometry and reveals the distinct spatial characteristics of the coherent core versus thermal wings.