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Phys. Rev. A 62, 063609 (2000) [16 pages]

Condensate growth in trapped Bose gases

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M. J. Bijlsma, E. Zaremba*, and H. T. C. Stoof
Institute for Theoretical Physics, University of Utrecht, Princetonplein 5, 3584 CC Utrecht, The Netherlands

Received 21 January 2000; published 15 November 2000

We study the dynamics of condensate formation in an inhomogeneous trapped Bose gas with a positive interatomic scattering length. We take into account both the nonequilibrium kinetics of the thermal cloud and the Hartree-Fock mean-field effects in the condensed and the noncondensed parts of the gas. Our growth equations are solved numerically by assuming that the thermal component behaves ergodically and that the condensate, treated within the Thomas-Fermi approximation, grows adiabatically. Our simulations are in good qualitative agreement with experiment, however important discrepancies concerning details of the growth behavior remain.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.62.063609
DOI:
10.1103/PhysRevA.62.063609
PACS:
03.75.Fi, 32.80.Pj, 05.30.Jp

*Permanent address: Department of Physics, Queen’s University, Kingston, Ontario, Canada K7L 3N6.