Spectroscopy of collective modes in a Bose-Einstein condensate: From single to double excitation periodsCollective modes are coherent excitations in Bose-Einstein condensates (BECs), and their study provides insight into the macroscopic quantum phenomena that govern these systems. Collective mode…Leandro A. Machado, Lucas Madeira, Mônica A. Caracanhas et al.·Nov 6, 2024SaveLearn
Yrast states of quantum droplets confined in a ring potentialWe consider a quantum droplet which is confined in a ring potential. We investigate the so-called "yrast" state, i.e., the lowest-energy state of the droplet assuming that it has some fixed…M. Ögren, G. M. Kavoulakis·Nov 6, 2024SaveLearn
Non-Hermitian skin effect in fragmented Hilbert spaces of one-dimensional fermionic latticesWe discover that the interplay between Hilbert space fragmentation and multiple non-Hermitian pumping channels leads to distinct non-Hermitian skin effect (NHSE) in real and Fock spaces. Using an…Yi-An Wang, Linhu Li·Nov 6, 2024SaveLearn
Rotating nonlinear states in trapped binary Bose-Einstein condensates under the action of the spin-orbit couplingWe report results of systematic analysis of confined steadily rotating patterns in the two-component BEC including the spin-orbit coupling (SOC) of the Rashba type, which acts in the interplay with…Hidetsugu Sakaguchi, Boris A. Malomed·Nov 6, 2024SaveLearn
Modulation of spin-orbit coupled Bose-Einstein condensates: analytical characterization of acceleration-induced transitions between energy bandsThe effects of modulating spin-orbit coupled Bose-Einstein condensates are analytically studied. A sinusoidal driving of the coupling amplitude is shown to induce significant changes in the energy…J. M. Gomez Llorente, J. Plata·Nov 5, 2024SaveLearn
Observation of quantum-classical transition behavior of LGI in a dissipative quantum gasThe Leggett-Garg inequality (LGI) is a powerful tool for distinguishing between quantum and classical properties in studies of macroscopic systems. Applying the LGI to non-Hermitian systems with…Qinxuan Peng, Bolong Jiao, Hang Yu et al.·Nov 5, 2024SaveLearn
Transfer of solitons and half-vortex solitons via adiabatic passageWe show that transfer of matter-wave solitons and half-vortex solitons in a spin-orbit coupled Bose-Einstein condensate between two (or more) arbitrarily chosen sites of an optical lattice can be…Chenhui Wang, Yongping Zhang, V. V. Konotop·Nov 5, 2024SaveLearn
Reflections on dipolar quantum fluidsWe present a thermodynamic description of ultracold gases with dipolar interactions which properly accounts for the long-range nature and broken rotation invariance of the interactions. It involves…Wilhelm Zwerger·Nov 4, 2024SaveLearn
Vortex phases and domain walls in trapped spinor Bose-Einstein condensates with inhomogeneous spin-orbital-angular-momentum couplingWe investigate the ground-state structures and vortex configurations in a two-component Bose-Einstein condensate (BEC) under the influence of spin-orbital-angular-momentum coupling (SOAMC) with a…O. O. Prykhodko, L. V. Zadorozhna·Nov 3, 2024SaveLearn
Tightly bound solitons and vortices in three-dimensional bosonic condensates with the electromagnetically-induced gravityThe 1/r long-range interaction, induced by laser illumination, offers a mechanism for the implementation of stable self-trapping in Bose-Einstein condensates (BECs) in the three-dimensional free…Zibin Zhao, Guilong Li, Huanbo Luo et al.·Nov 3, 2024SaveLearn
Macroscopic superposition of vortex states in a matter waveGenerating the vortex-state superposition in a matter wave is demanded in many quantum processes such as quantum memory and quantum metrology. Here we report the experimental generation of…Lingran Kong, Tianyou Gao, Shi-Guo Peng et al.·Nov 2, 2024SaveLearn
Torus bifurcation of a dissipative time crystalUsing a quantum gas setup consisting of a Bose-Einstein condensate strongly coupled to a high-finesse optical cavity by a transverse pump laser, we experimentally observe an instability of a…Jayson G. Cosme, Phatthamon Kongkhambut, Anton Bölian et al.·Oct 31, 2024SaveLearn
Joule expansion of a quantum gasWe revisit the classic Joule-expansion experiments, now with a quantum-degenerate atomic Bose gas. In contrast to the classical-gas experiments, where no temperature change was measured, here we…Christopher J. Ho, Simon M. Fischer, Gevorg Martirosyan et al.·Oct 31, 2024SaveLearn
Confined density of states, quantum concentration, and electron degeneracy pressure in low-dimensional systemsWe present a simple derivation of the density of states (DOS) in confined nanomaterials. While previous studies often apply a heuristic L3-d confinement factor to bulk DOS expressions, we show…Benedick Andrade, Rayda Gammag·Oct 31, 2024SaveLearn
Acceleration-induced transport of quantum vortices in joined atomtronic circuitsPersistent currents--inviscid quantized flow around an atomic circuit--are a crucial building block of atomtronic devices. We investigate how acceleration influences the transfer of persistent…A. Chaika, A. O. Oliinyk, I. V. Yatsuta et al.·Oct 31, 2024SaveLearn
Dynamical probing of high-order spin coherence in one-dimensional mixturesWe investigate the dynamics of one-dimensional SU(2) ultracold fermions near the Tonks-Girardeau limit, confined in a box potential. The system is driven out of equilibrium by initially preparing the…Silvia Musolino, Gianni Aupetit-Diallo, Mathias Albert et al.·Oct 31, 2024SaveLearn
Fröhlich versus Bose-Einstein Condensation in Pumped Bosonic SystemsMagnon-condensation, which emerges in pumped bosonic systems at room temperature, continues to garner great interest for its long-lived coherence. While traditionally formulated in terms of…Wenhao Xu, Andrey A. Bagrov, Farhan T. Chowdhury et al.·Oct 30, 2024SaveLearn
Geometry Dynamics in Chiral SuperfluidsWe investigate the geometric response of chiral superfluids when coupled to a dynamic background geometry. We find that geometry fluctuations, represented by the flexural mode, interact with the…Yuting Bai, Gabriel Cardoso, Rajae Malek et al.·Oct 30, 2024SaveLearn
Divergence of thermalization rates driven by the competition between finite temperature and quantum coherenceThe thermalization of an isolated quantum system is described by quantum mechanics and thermodynamics, while these two subjects are still not fully consistent with each other. This leaves a…Yuqing Wang, Libo Liang, Qinpei Zheng et al.·Oct 30, 2024SaveLearn
Effects of gravity on supersolid order in bubble-trapped bosonsUnveiling the principles behind self-organization in quantum systems is of paramount importance, both intrinsically and practically, in view of foreseeable technological applications. Recently,…Matteo Ciardi, Fabio Cinti, Giuseppe Pellicane et al.·Oct 29, 2024SaveLearn
Observation of a Bilayer Superfluid with Interlayer CoherenceControlling the coupling between different degrees of freedom in many-body systems is a powerful technique for engineering novel phases of matter. We create a bilayer system of two-dimensional (2D)…Erik Rydow, Vijay P. Singh, Abel Beregi et al.·Oct 29, 2024SaveLearn
Collective excitations and universal coarsening dynamics of a spin-orbit-coupled spin-1 Bose-Einstein condensateWe study the collective excitation spectrum of a Raman-induced spin-orbit-coupled spin-1 Bose-Einstein condensate confined in a quasi-one-dimensional harmonic trap while varying either the Raman…Rajat, Paramjeet Banger, Sandeep Gautam·Oct 29, 2024SaveLearn
Quantum many-body scars through the lens of correlation matrixQuantum many-body scars (QMBS) -- rare eigenstates that evade thermalization -- are typically characterized by their low entanglement entropies compared to surrounding thermal eigenstates. However,…Zhiyuan Yao, Pengfei Zhang·Oct 29, 2024SaveLearn
Boson-Anyon-Fermion Mapping and Anyon Construction in One DimensionWe establish an exact mapping between identical particles in one dimension with arbitrary exchange statistics, including bosons, anyons and fermions, provided they share the same scattering length.…Haitian Wang, Yu Chen, Xiaoling Cui·Oct 29, 2024SaveLearn
Antichiral and trap-skin dynamics in a nonreciprocal bosonic two-leg ladder with artificial magnetic fluxNon-Hermiticity and synthetic gauge fields play two fundamental roles in engineering exotic phases and dynamics in artificial quantum systems. Here we explore the mean-field dynamics of interacting…Rui-Jie Chen, Guo-Qing Zhang, Zhi Li et al.·Oct 29, 2024SaveLearn