Tunneling-induced damping of phase coherence revivals in deep optical lattices
arXiv:0807.3627 · doi:10.1103/PhysRevA.78.061603
Abstract
We consider phase coherence collapse and revival in deep optical lattices, and calculate within the Bose-Hubbard model the revival amplitude damping incurred by a finite tunneling coupling of the lattice wells (after sweeping from the superfluid to the Mott phase). Deriving scaling laws for the corresponding decay of first-order coherence revival in terms of filling factor, final lattice depth, and number of tunneling coupling partners, we estimate whether revival-damping related to tunneling between sites can be or even has already been observed in experiment.
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References in corpus (9)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Quench dynamics and non equilibrium phase diagram of the Bose-Hubbard model
- Exact relaxation in a class of non-equilibrium quantum lattice systems
- Sweeping from the superfluid to Mott phase in the Bose-Hubbard model
- Extended Bose Hubbard model of interacting bosonic atoms in optical lattices: from superfluidity to density waves
- Bogoliubov theory of quantum correlations in the time-dependent Bose-Hubbard model
- Nonlinear tunneling of BEC in an optical lattice: signatures of quantum collapse and revival
- Bogoliubov speed of sound for a dilute Bose-Einstein condensate in a 3d optical lattice
- Nonlinear intraband tunneling of BEC in a cubic three-dimensional lattice
Cited by in corpus (7)
- Semiclassical analysis of Bose-Hubbard dynamics
- Nonequilibrium dynamical mean-field theory for bosonic lattice models
- Atomic matter-wave revivals with definite atom number in an optical lattice
- Excitation Spectra of Bosons in Optical Lattices from Schwinger-Keldysh Calculation
- Collapse and revival oscillations as a probe for the tunneling amplitude in an ultra-cold Bose gas
- Quadrature interferometry for nonequilibrium ultracold bosons in optical lattices
- Resurgent revivals in bosonic quantum gases: a striking signature of many-body quantum interferences