skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Quantum dynamics of hard-core bosons in tilted bichromatic optical lattices

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 the density profile, the momentum distribution, and the condensate fraction. We show the oscillating and breathing mode of the dynamics, and the 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 tunneling for many-particle systems.

Authors:
; ;  [1]
  1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)
Publication Date:
OSTI Identifier:
22068750
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 84; Journal Issue: 3; Other Information: (c) 2011 American Institute of Physics; Country of input: Syrian Arab Republic; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BOSE-EINSTEIN GAS; BOSONS; CONDENSATES; DENSITY; DENSITY MATRIX; DISTRIBUTION; OSCILLATIONS; PARTICLES; TUNNEL EFFECT

Citation Formats

Cai Xiaoming, Chen Shu, and Wang Yupeng. Quantum dynamics of hard-core bosons in tilted bichromatic optical lattices. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.84.033605.
Cai Xiaoming, Chen Shu, & Wang Yupeng. Quantum dynamics of hard-core bosons in tilted bichromatic optical lattices. United States. doi:10.1103/PHYSREVA.84.033605.
Cai Xiaoming, Chen Shu, and Wang Yupeng. Thu . "Quantum dynamics of hard-core bosons in tilted bichromatic optical lattices". United States. doi:10.1103/PHYSREVA.84.033605.
@article{osti_22068750,
title = {Quantum dynamics of hard-core bosons in tilted bichromatic optical lattices},
author = {Cai Xiaoming and Chen Shu and Wang Yupeng},
abstractNote = {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 the density profile, the momentum distribution, and the condensate fraction. We show the oscillating and breathing mode of the dynamics, and the 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 tunneling for many-particle systems.},
doi = {10.1103/PHYSREVA.84.033605},
journal = {Physical Review. A},
issn = {1050-2947},
number = 3,
volume = 84,
place = {United States},
year = {2011},
month = {9}
}