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

Title: Effects of finite temperature on the Mott-insulator state

Abstract

We investigate the effects of finite temperature on ultracold Bose atoms confined in an optical lattice plus a parabolic potential in the Mott-insulator state. In particular, we analyze the temperature dependence of the density distribution of atomic pairs in the lattice, by means of exact Monte Carlo simulations. We introduce a simple model that quantitatively accounts for the computed pair density distributions at low enough temperatures. We suggest that the temperature dependence of the atomic pair statistics may be used to estimate the system's temperature at energies of the order of the atoms' interaction energy.

Authors:
 [1];  [2];  [3];  [1];  [4];  [5]
  1. National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States)
  2. (United States)
  3. (Austria)
  4. Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003 (United States)
  5. (Russian Federation)
Publication Date:
OSTI Identifier:
20786737
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 73; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevA.73.013408; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ATOMS; BOSE-EINSTEIN STATISTICS; COMPUTERIZED SIMULATION; DENSITY; DISTRIBUTION; MONTE CARLO METHOD; PHOTON-ATOM COLLISIONS; POTENTIALS; TEMPERATURE DEPENDENCE

Citation Formats

Pupillo, Guido, Department of Physics, University of Maryland, College Park, Maryland 20742, Institute for Quantum Optics and Quantum Information, 6020 Innsbruck, Williams, Carl J., Prokof'ev, Nikolay V., and Russian Research Center 'Kurchatov Institute', 123182, Moscow. Effects of finite temperature on the Mott-insulator state. United States: N. p., 2006. Web. doi:10.1103/PHYSREVA.73.0.
Pupillo, Guido, Department of Physics, University of Maryland, College Park, Maryland 20742, Institute for Quantum Optics and Quantum Information, 6020 Innsbruck, Williams, Carl J., Prokof'ev, Nikolay V., & Russian Research Center 'Kurchatov Institute', 123182, Moscow. Effects of finite temperature on the Mott-insulator state. United States. doi:10.1103/PHYSREVA.73.0.
Pupillo, Guido, Department of Physics, University of Maryland, College Park, Maryland 20742, Institute for Quantum Optics and Quantum Information, 6020 Innsbruck, Williams, Carl J., Prokof'ev, Nikolay V., and Russian Research Center 'Kurchatov Institute', 123182, Moscow. Sun . "Effects of finite temperature on the Mott-insulator state". United States. doi:10.1103/PHYSREVA.73.0.
@article{osti_20786737,
title = {Effects of finite temperature on the Mott-insulator state},
author = {Pupillo, Guido and Department of Physics, University of Maryland, College Park, Maryland 20742 and Institute for Quantum Optics and Quantum Information, 6020 Innsbruck and Williams, Carl J. and Prokof'ev, Nikolay V. and Russian Research Center 'Kurchatov Institute', 123182, Moscow},
abstractNote = {We investigate the effects of finite temperature on ultracold Bose atoms confined in an optical lattice plus a parabolic potential in the Mott-insulator state. In particular, we analyze the temperature dependence of the density distribution of atomic pairs in the lattice, by means of exact Monte Carlo simulations. We introduce a simple model that quantitatively accounts for the computed pair density distributions at low enough temperatures. We suggest that the temperature dependence of the atomic pair statistics may be used to estimate the system's temperature at energies of the order of the atoms' interaction energy.},
doi = {10.1103/PHYSREVA.73.0},
journal = {Physical Review. A},
number = 1,
volume = 73,
place = {United States},
year = {Sun Jan 15 00:00:00 EST 2006},
month = {Sun Jan 15 00:00:00 EST 2006}
}