Quantum Kinetic Theory of Condensate Growth: Comparison of Experiment and Theory

Autor:	Peter Zoller, R. J. Ballagh, Crispin W. Gardiner, M. D. Lee, Matthew J. Davis
Rok vydání:	1998
Předmět:	Condensed Matter::Quantum Gases Physics Condensed Matter (cond-mat) FOS: Physical sciences General Physics and Astronomy Condensed Matter Kinetic energy law.invention law Quantum mechanics Kinetic theory of gases Growth equation Quantum Bose–Einstein condensate
Zdroj:	Physical Review Letters. 81:5266-5269
ISSN:	1079-7114 0031-9007
DOI:	10.1103/physrevlett.81.5266
Popis:	In a major extension of our previous model (C.W. Gardiner, P. Zoller, R.J. Ballagh and M.J. Davis, Phys. Rev. Lett. 79, 1793 (1997)) of condensate growth, we take account of the evolution of the occupations of lower trap levels, and of the full Bose-Einstein formula for the occupations of higher trap levels. We find good agreement with experiment, especially at higher temperatures. We also confirm the picture of the ``kinetic'' region of evolution, introduced by Kagan et al, for the time up to the initiation of the condensate. The behavior after initiation essentially follows our original growth equation, but with a substantially increased rate coefficient W^{+}. Comment: RevTeX, 4 pages and 4 eps figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c76f85e90419f31b181a848945feadff https://doi.org/10.1103/physrevlett.81.5266 Zobrazit plný text záznamu