Instability and depletion of an excited Bose-Einstein condensate in a trap

被引：109

作者：

Castin, Y

Dum, R

机构：

[1] Laboratoire Kastler Brossel, Ecole Normale Supérieure, Paris, F-75005

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.79.3553

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present an analytical method to calculate the depletion of a Bose-Einstein condensate excited in a time dependent harmonic trap. We identify a regime; where the motion of the condensate is unstable and show that this instability leads to an exponentially fast population of noncondensed modes. As these modes are concentrated on the surface of the condensate this is observable in the particle density. [S0031-9007(97)04428-1].

引用

收藏

页码：3553 / 3556

页数：4

相关论文

共 13 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] Ground-state properties of magnetically trapped Bose-condensed rubidium gas [J].

Baym, G ;

Pethick, CJ .

PHYSICAL REVIEW LETTERS, 1996, 76 (01) :6-9

[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 condensates in time dependent traps [J].

Castin, Y ;

Dum, R .

PHYSICAL REVIEW LETTERS, 1996, 77 (27) :5315-5319

[5]

CASTIN Y, IN PRESS

[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] Particle-number-conserving Bogoliubov method which demonstrates the validity of the time-dependent Gross-Pitaevskii equation for a highly condensed Bose gas [J].

Gardiner, CW .

PHYSICAL REVIEW A, 1997, 56 (02) :1414-1423

[8] Collective excitations of a Bose-Einstein condensate in a dilute gas [J].

Jin, DS ;

Ensher, JR ;

Matthews, MR ;

Wieman, CE ;

Cornell, EA .

PHYSICAL REVIEW LETTERS, 1996, 77 (03) :420-423

[9] Evolution of a Bose gas in anisotropic time-dependent traps [J].

Kagan, Y ;

Surkov, EL ;

Shlyapnikov, GV .

PHYSICAL REVIEW A, 1997, 55 (01) :R18-R21

[10] Evolution of a Bose-condensed gas under variations of the confining potential [J].

Kagan, Y ;

Surkov, EL ;

Shlyapnikov, GV .

PHYSICAL REVIEW A, 1996, 54 (03) :R1753-R1756