Title
The mode-deviation effect of trapped spinor bose gas beyond mean field theory The mode-deviation effect of trapped spinor bose gas beyond mean field theory
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
Singapore ,
Subject
Physics
Source (journal)
International journal of modern physics: B: condensed matter physics, statistical physics, applied physics. - Singapore
Volume/pages
18(2004) :9 , p. 1339-1349
ISSN
0217-9792
ISI
000222342400008
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The deviation effect of spinor mode from the single-mode for a spin-1 Bose gas of trapped atoms is studied beyond the mean field theory. Based on the effective Hamiltonian with nondegenerated level of the collective spin states, the splitting level of the system energy due to the deviation effect has been calculated. For the large condensates of (87)Rb and (23)Na with atom number N > 10(5), the splitting fraction of the energy, arising from the magnetization exhibited by the trapped Bose gas, is found to have a typical order of (10(-4) similar to 10(-8)), decreasing as N(-2) for (87)Rb and increasing as -N(-2) for 23 Na, respectively.
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