Quantum dynamics of hard-core bosons in tilted bichromatic optical lattices
arXiv:1106.2371 · doi:10.1103/PhysRevA.84.033605
Abstract
We study the dynamics of strongly repulsive Bose gas in tilted or driven bichromatic optical lattices. Using the Bose-Fermi mapping and exact numerical method, we calculate the reduced single-particle density matrices, and study the dynamics of density profile, momentum distribution and condensate fraction. We show the oscillating and breathing mode of dynamics, and depletion of condensate for short time dynamics. For long time dynamics, we clearly show the reconstruction of system at integer multiples of Bloch-Zener time. We also show how to achieve clear Bloch oscillation and Landau-Zener tunnelling for many-particle systems.
9 pages, 5 figures
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Cited by in corpus (7)
- Entangling many-body bound states with propagative modes in Bose-Hubbard systems
- Hydrodynamic description of Hard-core Bosons on a Galileo ramp
- Many-body quantum dynamics of initially trapped systems due to a Stark potential --- thermalization vs. Bloch oscillations
- Modulated trapping of interacting bosons in one dimension
- Stückelberg interferometry using spin-orbit-coupled cold atoms in an optical lattice
- Long-time averaged dynamics of a Bose-Einstein condensate in a bichromatic optical lattice with external harmonic confinement
- Critical Exponent of Dynamical Quantum Phase Transition in One-Dimensional Bose-Hubbard Model in the Strong Interacting Limit