Canonical Bose gas simulations with stochastic gauges

Drummond, P. D., Deuar, P. and Kheruntsyan, K. V. (2004) Canonical Bose gas simulations with stochastic gauges. Physical Review Letters, 92 4: 040405-1-040405-4. doi:10.1103/PhysRevLett.92.040405

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Author Drummond, P. D.
Deuar, P.
Kheruntsyan, K. V.
Title Canonical Bose gas simulations with stochastic gauges
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
Publication date 2004-01-01
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.92.040405
Open Access Status File (Publisher version)
Volume 92
Issue 4
Start page 040405-1
End page 040405-4
Total pages 4
Editor B. Crasemann
Place of publication USA
Publisher American Physical Society
Collection year 2004
Language eng
Subject 240101 Astronomy and Astrophysics
780102 Physical sciences
C1
240201 Theoretical Physics
Abstract A technique to simulate the grand canonical ensembles of interacting Bose gases is presented. Results are generated for many temperatures by averaging over energy-weighted stochastic paths, each corresponding to a solution of coupled Gross-Pitaevskii equations with phase noise. The stochastic gauge method used relies on an off-diagonal coherent-state expansion, thus taking into account all quantum correlations. As an example, the second-order spatial correlation function and momentum distribution for an interacting 1D Bose gas are calculated.
Keyword Astrophysics
Quantaum Optics
Atom Optics
Biophotonics
Laser Science
Condencsed Matter Physics
Quantum Computation
Quantum Information
Impenetrable Bosons
Quantum Solitons
Dynamics
Physics, Multidisciplinary
Q-Index Code C1
Additional Notes DOI: 10.1103/PhysRevLett.92.040405 _________________ URL: http://link.aps.org/abstract/PRL/v92/e040405

 
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Created: Tue, 03 Apr 2007, 09:21:34 EST by Kaye Eldridge on behalf of School of Mathematics & Physics