Quantum kinetic theory. VII. The influence of vapor dynamics on condensate growth

Davis, M. J., Gardiner, C. W. and Ballagh, R. J. (2000) Quantum kinetic theory. VII. The influence of vapor dynamics on condensate growth. Physical Review a, 62 6: 063608-063601. doi:10.1103/PhysRevA.62.063608

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Author Davis, M. J.
Gardiner, C. W.
Ballagh, R. J.
Title Quantum kinetic theory. VII. The influence of vapor dynamics on condensate growth
Journal name Physical Review a   Check publisher's open access policy
ISSN 1050-2947
Publication date 2000-12-01
Sub-type Article (original research)
DOI 10.1103/PhysRevA.62.063608
Open Access Status File (Publisher version)
Volume 62
Issue 6
Start page 063608
End page 063601
Total pages 12
Place of publication College Park, MD, United States
Publisher American Physical Society
Language eng
Formatted abstract
We extend earlier models of the growth of a Bose-Einstein condensate c.w. [Gardiner et al., Phys. Rev. Lett. 79, 1793 (1997); e-print cond-mat/9801027; Phys. Rev. Lett. 81, 5266 (1998)] to include the full dynamical effects of the thermal cloud by numerically solving a modified quantum Boltzmann equation. We determine the regime in which the assumptions of the simple model of Gardiner et al. [Phys. Rev. Lett. 81, 5266 (1998)] are a reasonable approximation, and compare our results with those that were earlier compared with experimental data. We find good agreement with our earlier modeling, except at higher condensate fractions, for which a significant speedup is found. We also investigate the effect of the final temperature on condensate growth, and find that this has a surprisingly small effect. The particular discrepancy between theory and experiment found in our earlier model remains, since the speedup found in these computations does not occur in the parameter regime specified in the experiment.
Keyword Bose-Einstein Condensation
Master Equation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
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Citation counts: TR Web of Science Citation Count  Cited 36 times in Thomson Reuters Web of Science Article | Citations
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