Quantum chaos in interacting Bose-Bose mixtures

• URL: http://arxiv.org/abs/2301.04818v2
• Date: Fri, 12 May 2023 10:49:52 GMT
• Title: Quantum chaos in interacting Bose-Bose mixtures
• Authors: Tran Duong Anh-Tai and Mathias Mikkelsen and Thomas Busch and Thom\'as Fogarty
• Abstract summary: We study the emergence of quantum chaos in a minimal system describing one-dimensional harmonically trapped Bose-Bose mixtures. We show that one can obtain strong signatures of chaos by increasing the inter-component interaction strength and breaking the symmetry of intra-component interactions.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The appearance of chaotic quantum dynamics significantly depends on the symmetry properties of the system, and in cold atomic systems many of these can be experimentally controlled. In this work, we systematically study the emergence of quantum chaos in a minimal system describing one-dimensional harmonically trapped Bose-Bose mixtures by tuning the particle-particle interactions. Using an advanced exact diagonalization scheme, we examine the transition from integrability to chaos when the inter-component interaction changes from weak to strong. Our study is based on the analysis of the level spacing distribution and the distribution of the matrix elements of observables in terms of the eigenstate thermalization hypothesis and their dynamics. We show that one can obtain strong signatures of chaos by increasing the inter-component interaction strength and breaking the symmetry of intra-component interactions.

Related papers

• Controlling the dynamics of atomic correlations via the coupling to a dissipative cavity [0.0]
  We analyze the relaxation dynamics in an open system composed by a quantum gas of bosons in a lattice interacting via both contact and global interactions. We report the onset of periodic oscillations of the atomic coherences exhibiting hallmarks of synchronization after a quantum quench.
  arXiv  Detail & Related papers  (2024-03-29T10:18:21Z)
• Reaction-limited quantum reaction-diffusion dynamics [0.0]
  We consider the quantum nonequilibrium dynamics of systems where fermionic particles coherently hop on a one-dimensional lattice. By exploiting the time-dependent generalized Gibbs ensemble method, we demonstrate that quantum coherence and destructive interference play a crucial role in these systems.
  arXiv  Detail & Related papers  (2022-09-20T15:14:52Z)
• Tuning long-range fermion-mediated interactions in cold-atom quantum simulators [68.8204255655161]
  Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior. Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
  arXiv  Detail & Related papers  (2022-03-31T13:32:12Z)
• Unification of Random Dynamical Decoupling and the Quantum Zeno Effect [68.8204255655161]
  We show that the system dynamics under random dynamical decoupling converges to a unitary with a decoupling error that characteristically depends on the convergence speed of the Zeno limit. This reveals a unification of the random dynamical decoupling and the quantum Zeno effect.
  arXiv  Detail & Related papers  (2021-12-08T11:41:38Z)
• Interacting bosons in a triple well: Preface of many-body quantum chaos [0.0]
  We investigate the onset of quantum chaos in a triple-well model that moves away from integrability as its potential gets tilted. Even in its deepest chaotic regime, the system presents features reminiscent of integrability.
  arXiv  Detail & Related papers  (2021-11-26T19:00:03Z)
• Probing quantum chaos in multipartite systems [4.771483851099131]
  We show that the contribution of the subsystems to the global behavior can be revealed by probing the full counting statistics. We show that signatures of quantum chaos in the time domain dictate a dip-ramp-plateau structure in the characteristic function. Global quantum chaos can be suppressed at strong coupling.
  arXiv  Detail & Related papers  (2021-11-24T13:06:25Z)
• Non-Equilibrium Many-Body Dynamics Following A Quantum Quench [0.40357531559576965]
  We study analytically and numerically the non-equilibrium dynamics of an isolated interacting many-body quantum system following a random quench. We obtain a generic formulation for describing relaxation dynamics of survival probabilities as a function of rank of interactions.
  arXiv  Detail & Related papers  (2021-11-17T18:55:11Z)
• Quantum Coherent States of Interacting Bose-Fermi Mixtures in One Dimension [68.8204255655161]
  We study two-component atomic gas mixtures in one dimension involving both bosons and fermions. We report a rich variety of coherent ground-state phases that vary with the intrinsic and relative strength of the interactions.
  arXiv  Detail & Related papers  (2021-10-26T17:52:37Z)
• Quantum asymmetry and noisy multi-mode interferometry [55.41644538483948]
  Quantum asymmetry is a physical resource which coincides with the amount of coherence between the eigenspaces of a generator. We show that the asymmetry may emphincrease as a result of a emphdecrease of coherence inside a degenerate subspace.
  arXiv  Detail & Related papers  (2021-07-23T07:30:57Z)
• Sensing quantum chaos through the non-unitary geometric phase [62.997667081978825]
  We propose a decoherent mechanism for sensing quantum chaos. The chaotic nature of a many-body quantum system is sensed by studying the implications that the system produces in the long-time dynamics of a probe coupled to it.
  arXiv  Detail & Related papers  (2021-04-13T17:24:08Z)
• Dynamical solitons and boson fractionalization in cold-atom topological insulators [110.83289076967895]
  We study the $mathbbZ$ Bose-Hubbard model at incommensurate densities. We show how defects in the $mathbbZ$ field can appear in the ground state, connecting different sectors. Using a pumping argument, we show that it survives also for finite interactions.
  arXiv  Detail & Related papers  (2020-03-24T17:31:34Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.