Condensate growth in trapped Bose gases

被引:79
作者
Bijlsma, MJ
Zaremba, E
Stoof, HTC
机构
[1] Univ Utrecht, Inst Theoret Phys, NL-3584 CC Utrecht, Netherlands
[2] Queens Univ, Dept Phys, Kingston, ON K7L 3N6, Canada
来源
PHYSICAL REVIEW A | 2000年 / 62卷 / 06期
关键词
D O I
10.1103/PhysRevA.62.063609
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
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-held 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.
引用
收藏
页码:063609 / 063601
页数:16
相关论文
共 39 条
[1]   OBSERVATION OF BOSE-EINSTEIN CONDENSATION IN A DILUTE ATOMIC VAPOR [J].
ANDERSON, MH ;
ENSHER, JR ;
MATTHEWS, MR ;
WIEMAN, CE ;
CORNELL, EA .
SCIENCE, 1995, 269 (5221) :198-201
[2]  
[Anonymous], SOV PHYS JETP
[3]   Bose-Einstein condensation of lithium: Observation of limited condensate number [J].
Bradley, CC ;
Sackett, CA ;
Hulet, RG .
PHYSICAL REVIEW LETTERS, 1997, 78 (06) :985-989
[4]   EVIDENCE OF BOSE-EINSTEIN CONDENSATION IN AN ATOMIC GAS WITH ATTRACTIVE INTERACTIONS [J].
BRADLEY, CC ;
SACKETT, CA ;
TOLLETT, JJ ;
HULET, RG .
PHYSICAL REVIEW LETTERS, 1995, 75 (09) :1687-1690
[5]   Theory of Bose-Einstein condensation in trapped gases [J].
Dalfovo, F ;
Giorgini, S ;
Pitaevskii, LP ;
Stringari, S .
REVIEWS OF MODERN PHYSICS, 1999, 71 (03) :463-512
[6]   BOSE-EINSTEIN CONDENSATION IN A GAS OF SODIUM ATOMS [J].
DAVIS, KB ;
MEWES, MO ;
ANDREWS, MR ;
VANDRUTEN, NJ ;
DURFEE, DS ;
KURN, DM ;
KETTERLE, W .
PHYSICAL REVIEW LETTERS, 1995, 75 (22) :3969-3973
[7]  
DAVIS MJ, CONDMAT9912439
[8]   RELAXATION PROCESSES IN A CONDENSED BOSE-GAS [J].
ECKERN, U .
JOURNAL OF LOW TEMPERATURE PHYSICS, 1984, 54 (3-4) :333-359
[9]   Quantum kinetic theory: A quantum kinetic master equation for condensation of a weakly interacting Bose gas without a trapping potential [J].
Gardiner, CW ;
Zoller, P .
PHYSICAL REVIEW A, 1997, 55 (04) :2902-2921
[10]   Kinetics of Bose-Einstein condensation in a trap [J].
Gardiner, CW ;
Zoller, P ;
Ballagh, RJ ;
Davis, MJ .
PHYSICAL REVIEW LETTERS, 1997, 79 (10) :1793-1796