Stability of magnetically trapped Bose-Einstein condensates

被引:0
作者
Kawaguchi, Y [1 ]
Ohmi, T [1 ]
机构
[1] Kyoto Univ, Grad Sch Sci, Dept Phys, Kyoto 6068502, Japan
关键词
Bose-Einstein condensation; magnetic trap; Gross-Pitaevskii Equation; spin-flip; adiabatic approximation;
D O I
10.1143/JPSJ.72.1118
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
According to the adiabatic approximation atoms moving in a magnetic trap keep their magnetic states. We investigate the validity of this approximation for quantum condensates, where a change of field's direction generates effective interactions between hyperfine angular momentum states. Condensates in general traps are found to be stable because they are confined in the vicinity of the trap center. A decay of a condensate is observable in a trap with extremely large field gradient.
引用
收藏
页码:1118 / 1122
页数:5
相关论文
共 10 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]   COMPUTER-SIMULATION OF NEUTRAL ATOM TRAPS [J].
ANTILLON, A ;
GONGORA, A ;
SELIGMAN, TH .
ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1992, 24 (04) :347-350
[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]   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
[5]   Bose-Einstein condensation on a microelectronic chip [J].
Hänsel, W ;
Hommelhoff, P ;
Hänsch, TW ;
Reichel, J .
NATURE, 2001, 413 (6855) :498-501
[6]   Spinor Bose condensates in optical traps [J].
Ho, TL .
PHYSICAL REVIEW LETTERS, 1998, 81 (04) :742-745
[7]   Creation of a persistent current and vortex in a Bose-Einstein condensate of alkali-metal atoms [J].
Isoshima, T ;
Nakahara, M ;
Ohmi, T ;
Machida, K .
PHYSICAL REVIEW A, 2000, 61 (06) :10
[8]   Imprinting vortices in a Bose-Einstein condensate using topological phases -: art. no. 190403 [J].
Leanhardt, AE ;
Görlitz, A ;
Chikkatur, AP ;
Kielpinski, D ;
Shin, Y ;
Pritchard, DE ;
Ketterle, W .
PHYSICAL REVIEW LETTERS, 2002, 89 (19) :1-190403
[9]   Decay of trapped ultracold alkali atoms by recombination [J].
Moerdijk, AJ ;
Boesten, HMJM ;
Verhaar, BJ .
PHYSICAL REVIEW A, 1996, 53 (02) :916-920
[10]   Bose-Einstein condensation with internal degrees of freedom in alkali atom gases [J].
Ohmi, T ;
Machida, K .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1998, 67 (06) :1822-1825