Quantum and thermal fluctuations of trapped Bose-Einstein condensates

Kruglov, V. I., Olsen, M. K. and Collett, M. J. (2005) Quantum and thermal fluctuations of trapped Bose-Einstein condensates. Physical Review A, 72 3: 033604-1-033604-13. doi:10.1103/PhysRevA.72.033604

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Author Kruglov, V. I.
Olsen, M. K.
Collett, M. J.
Title Quantum and thermal fluctuations of trapped Bose-Einstein condensates
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
Publication date 2005-09
Year available 2005
Sub-type Article (original research)
DOI 10.1103/PhysRevA.72.033604
Open Access Status File (Publisher version)
Volume 72
Issue 3
Start page 033604-1
End page 033604-13
Total pages 13
Place of publication New York
Publisher American Physical Society
Language eng
Abstract We quantize a semiclassical system defined by the Hamiltonian obtained from the asymptotic self-similar solution of the Gross-Pitaevskii equation for a trapped Bose-Einstein condensate with a linear gain term. On the basis of a Schrodinger equation derived in a space of ellipsoidal parameters, we analytically calculate the quantum mechanical and thermal variance in the ellipsoidal parameters for Bose-Einstein condensates in various shapes of trap. We show that, except for temperatures close to zero, dimensionless dispersions do not depend on the frequencies of the trap and they have the same dependence on dimensionless temperatures.
Keyword Optics
Physics, Atomic, Molecular & Chemical
Self-similar Propagation
Low-energy Excitations
Finite Temperatures
Collective Excitations
Parabolic Pulses
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Physical Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 14 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 12 times in Scopus Article | Citations
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Created: Wed, 19 Sep 2007, 17:02:13 EST