Unbounded entropy production and violent fragmentation for repulsive-to-attractive interaction quench in long-range interacting systems
arXiv:2405.14928 · doi:10.1088/1367-2630/ad80b8
Abstract
We study the non-equilibrium dynamics of a one-dimensional Bose gas with long-range interactions that decay as ). We investigate exotic dynamics when the interactions are suddenly switched from strongly repulsive to strongly attractive, a procedure known to generate super-Tonks-Girardeau gases in systems with contact interactions. We find that relaxation is achieved through a complex intermediate dynamics demonstrated by violent fragmentation and chaotic delocalization. We establish that the relaxed state exhibits classical gaseous characteristics and an asymptotic state associated with unbounded entropy production. The phase diagram shows an exponential boundary between the coherent (quantum) gas and the chaotic (classical) gas. We show the universality of the dynamics by also presenting analogous results for spinless fermions. Weaker quench protocols give a certain degree of control over the relaxation process and induce a slower initial entropy growth. Our study showcases the complex relaxation behavior of tunable long-range interacting systems that could be engineered in state-of-the-art experiments, e.g. in trapped ions or Rydberg atoms.
31 pages, 13 figures
References in corpus (37)
- Thermalization and its mechanism for generic isolated quantum systems
- Observation of the supersolid stripe phase in spin-orbit coupled Bose-Einstein condensates
- Dynamical phase transition in correlated fermionic lattice systems
- Transient supersolid properties in an array of dipolar quantum droplets
- Long-lived and transient supersolid behaviors in dipolar quantum gases
- Dipolar physics: A review of experiments with magnetic quantum gases
- The multi-configurational time-dependent Hartree method for bosons: Many-body dynamics of bosonic systems
- Ultracold atoms out of equilibrium
- Long-range interacting quantum systems
- Observation of a dissipative time crystal
- Role of excited states in the splitting dynamics of interacting Bose-Einstein condensates when ramping-up a barrier
- Observation of a continuous time crystal
- Two-dimensional supersolidity in a dipolar quantum gas
- General variational many-body theory with complete self-consistency for trapped bosonic systems
- Relaxation of a one-dimensional Mott insulator after an interaction quench
- The dynamics and prethermalization of one dimensional quantum systems probed through the full distributions of quantum noise
- Exact quantum dynamics of bosons with finite-range time-dependent interactions of harmonic type
- Diverging equilibration times in long-range quantum spin models
- Dipolar quantum solids emerging in a Hubbard quantum simulator
- Birth, life, and death of a dipolar supersolid
- Condensate fragmentation as a sensitive measure of the quantum many-body behavior of bosons with long-range interactions
- Tunable itinerant spin dynamics with polar molecules
- Prethermalization of atoms due to photon-mediated long-range interactions
- Engineering and probing non-Abelian chiral spin liquids using periodically driven ultracold atoms
- Heating a dipolar quantum fluid into a solid
- Tuning anomalous Floquet topological bands with ultracold atoms
- Supersolidity in ultra-cold dipolar gases
- Super-Tonks-Girardeau regime in trapped one-dimensional dipolar gases
- Dynamics of pair correlations in the attractive Lieb-Liniger gas
- Observing dynamical currents in a non-Hermitian momentum lattice
- Accuracy of quantum simulators with ultracold dipolar molecules: a quantitative comparison between continuum and lattice descriptions
- Mott transition in a cavity-boson system: A quantitative comparison between theory and experiment
- Repulsive to attractive interaction quenches of 1D Bose gas in a harmonic trap
- Fragmentation and correlations in a rotating Bose-Einstein condensate undergoing breakup
- Fermionization via cavity-assisted infinite-range interactions
- Entanglement prethermalization in the Tomonaga-Luttinger model
- Pauli crystal melting in shaken optical traps
Cited by in corpus (8)
- Stability of quasicrystalline ultracold fermions to dipolar interactions
- Interaction quench of dipolar bosons in a one-dimensional optical lattice
- Stability of dipolar bosons in a quasiperiodic potential
- Interaction Quench Dynamics and Stability of Quantum Vortices in Rotating Bose-Einstein Condensates
- Beyond-mean-field phases of rotating dipolar condensates
- One-Dimensional Quench Dynamics in an Optical Lattice: sine-Gordon and Bose-Hubbard Descriptions
- One-dimensional long-range Ising model: two (almost) equivalent approximations
- Entropy production and statistical relaxation of dipolar bosons and fermions in interaction quench dynamics