Analytical estimate of the critical velocity for vortex pair creation in trapped Bose condensates

被引：23

作者：

Crescimanno, M ^{[1
]}

Koay, CG

Peterson, R

Walsworth, R

机构：

[1] Youngstown State Univ, Dept Phys & Astron, Youngstown, OH 44555 USA

[2] Berea Coll, Dept Phys, Berea, KY 40404 USA

[3] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

来源：

PHYSICAL REVIEW A | 2000年 / 62卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.62.063612

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We use a Thomas-Fermi approximation that includes the leading kinetic terms due to fluid motion to estimate analytically the critical velocity for the formation of vortex pairs in harmonically trapped Bose-Einstein condensates. We find rough agreement between this analytical estimate and recent experiments on trapped sodium gas condensates.

引用

页码：063612 / 063611

页数：7

共 29 条

[1] QUANTIZED PHASE SLIPPAGE IN SUPERFLUID HE-4
AMAR, A
SASAKI, Y
LOZES, RL
DAVIS, JC
PACKARD, RE
[J]. PHYSICAL REVIEW LETTERS, 1992, 68 (17) : 2624 - 2627
[2] CONSIDERATIONS ON FLOW OF SUPERFLUID HELIUM
ANDERSON, PW
[J]. REVIEWS OF MODERN PHYSICS, 1966, 38 (02) : 298 - &
[3] OBSERVATION OF SINGLY QUANTIZED DISSIPATION EVENTS OBEYING THE JOSEPHSON FREQUENCY RELATION IN THE CRITICAL FLOW OF SUPERFLUID HE-4 THROUGH AN APERTURE
AVENEL, O
VAROQUAUX, E
[J]. PHYSICAL REVIEW LETTERS, 1985, 55 (24) : 2704 - 2707
[4] A Critical Look at a Class of Critical Velocity Theories for Superfluid He
Campbell, L. J.
[J]. JOURNAL OF LOW TEMPERATURE PHYSICS, 1972, 8 (1-2) : 105 - 113
[5] CRESCIMANNO M, UNPUB
[6] Theory of Bose-Einstein condensation in trapped gases
Dalfovo, F
Giorgini, S
Pitaevskii, LP
Stringari, S
[J]. REVIEWS OF MODERN PHYSICS, 1999, 71 (03) : 463 - 512
[7] FEDICHEV PO, CONMAT0004039
[8] VORTEX RINGS AND CRITICAL VELOCITY IN HELIUM II
FETTER, AL
[J]. PHYSICAL REVIEW LETTERS, 1963, 10 (12) : 507 - &
[9] VORTICES IN AN IMPERFECT BOSE GAS .I. CONDENSATE
FETTER, AL
[J]. PHYSICAL REVIEW, 1965, 138 (2A): : A429 - +
[10] Feynman R. P, 1955, Progress in Low Temperature Physics, DOI [10.1016/S0079-6417(08)60077-3, DOI 10.1016/S0079-6417(08)60077-3]

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