Decay of symmetry-protected quantum states
arXiv:2005.14438 · doi:10.1103/PhysRevA.102.033324
Abstract
We study the decay of bosonic many-body states in the three well Bose-Hubbard chain where bosons in the central well can escape into a reservoir. For vanishing inter-particle interaction this system supports a non-decaying many-body state which is the antisymmetric Bose-Einstein condensate with particles occupying only the edge wells. In the classical approach this quantum state corresponds to a symmetry protected non-decaying state which is stable even at finite interaction below a certain intensity threshold. Here we demonstrate that despite the classical counterpart is stable the antisymmetric Bose-Einstein condensate is always metastable at finite interatomic interactions due to quantum fluctuations.
arXiv comment18 pages, 5 figures
References in corpus (36)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Quantum States and Phases in Driven Open Quantum Systems with Cold Atoms
- Squeezing and entanglement in a Bose-Einstein condensate
- Classical bifurcation at the transition from Rabi to Josephson dynamics
- Dissipative production of a maximally entangled steady state
- Controlling the dynamics of an open many-body quantum system with localized dissipation
- Conduction of Ultracold Fermions Through a Mesoscopic Channel
- Fragmentation of Bose-Einstein Condensates
- Observation of Quantized Conductance in Neutral Matter
- Non-equilibrium steady-states in a driven-dissipative superfluid
- Quantum phase space picture of Bose-Einstein Condensates in a double well: Proposals for creating macroscopic quantum superposition states and a study of quantum chaos
- Exact solution of Markovian master equations for quadratic fermi systems: thermal baths, open XY spin chains, and non-equilibrium phase transition
- Observation of Quantum Phase Transitions with Parity-Symmetry Breaking and Hysteresis
- Dissipation induced coherence of a two-mode Bose-Einstein condensate
- Negative differential conductivity in an interacting quantum gas
- Collective modes, chaotic behavior and self-trapping in the dynamics of three coupled Bose-Einstein condensates
- Quantum Dynamics of Three Coupled Atomic Bose-Einstein Condensates
- Band and correlated insulators of cold fermions in a mesoscopic lattice
- Exact number conserving phase-space dynamics of the M-site Bose-Hubbard model
- Fermionic statistics suppresses Fano resonances
- Interaction-induced quantum phase revivals and evidence for the transition to the quantum chaotic regime in 1D atomic Bloch oscillations
- Semiclassical approach to Bose-Einstein condensates in a triple well potential
- Controllable manipulation and detection of local densities and bipartite entanglement in a quantum gas by a dissipative defect
- Self-trapping mechanisms in the dynamics of three coupled Bose-Einstein condensates
- Subradiant Dimer Excitations of Emitter Chains Coupled to a 1D Waveguide
- Semiclassical quantization of an N-particle Bose-Hubbard model
- Bloch oscillations of Bose-Einstein condensates: Quantum counterpart of dynamical instability
- Open quantum systems approach to atomtronics
- Quasi-flat band enables subradiant two-photon bound states
- Non-equilibrium dynamics in dissipative Bose-Hubbard chains
- Transport in Floquet-Bloch bands
- Bosonic transport through a chain of quantum dots
- Landauer-Büttiker equation for bosonic carriers
- NOON state of Bose atoms in the double-well potential via an excited state quantum phase transition
- The open Bose-Hubbard chain: Pseudoclassical approach
- Probing Quantum Chaos in many-body quantum systems by the induced dissipation