Quadrupole oscillation of a single-vortex Bose-Einstein condensate: Evidence for Kelvin modes

被引：116

作者：

Bretin, V

Rosenbusch, P

Chevy, F

Shlyapnikov, GV

Dalibard, J

机构：

[1] Univ Paris 06, Unite Rech,CNRS, Ecole Normale Super, Lab Kastler Brossel, F-75005 Paris, France

[2] FOM, Inst Atom & Mol Phys, Amsterdam, Netherlands

[3] IV Kurchatov Atom Energy Inst, Russian Res Ctr, Moscow 123182, Russia

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.90.100403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the two transverse quadrupole modes of a cigar-shaped Bose-Einstein condensate with a single centered vortex. We show that the counterrotating mode is more strongly damped than in the absence of a vortex, whereas the corotating mode is not affected appreciably by the vortex. We interpret this result as a decay of the counterrotating quadrupole mode into two excitations of the vortex line, the so-called Kelvin modes. This is supported by direct observation of the vortex line.

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页数：4

相关论文

共 36 条

[1] Observation of vortex lattices in Bose-Einstein condensates [J].

Abo-Shaeer, JR ;

Raman, C ;

Vogels, JM ;

Ketterle, W .

SCIENCE, 2001, 292 (5516) :476-479

[2] VORTEX WAVES IN SUPERFLUID HE-4 [J].

ASHTON, RA ;

GLABERSON, WI .

PHYSICAL REVIEW LETTERS, 1979, 42 (16) :1062-1064

[3] Bose-Einstein condensates in time dependent traps [J].

Castin, Y ;

Dum, R .

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

[4] Measurement of the angular momentum of a rotating Bose-Einstein condensate [J].

Chevy, F ;

Madison, KW ;

Dalibard, J .

PHYSICAL REVIEW LETTERS, 2000, 85 (11) :2223-2227

[5] Observation of phase fluctuations in elongated Bose-Einstein condensates [J].

Dettmer, S ;

Hellweg, D ;

Ryytty, P ;

Arlt, JJ ;

Ertmer, W ;

Sengstock, K ;

Petrov, DS ;

Shlyapnikov, GV ;

Kreutzmann, H ;

Santos, L ;

Lewenstein, M .

PHYSICAL REVIEW LETTERS, 2001, 87 (16) :art. no.-160406

[6] Excitation spectroscopy of vortex states in dilute Bose-Einstein condensed gases [J].

Dodd, RJ ;

Burnett, K ;

Edwards, M ;

Clark, CW .

PHYSICAL REVIEW A, 1997, 56 (01) :587-590

[7]

Donnelly R. J., 1991, QUANTIZED VORTICES H, V2

[8] Nonequilibrium effects of anisotropic compression applied to vortex lattices in Bose-Einstein condensates [J].

Engels, P ;

Coddington, I ;

Haljan, PC ;

Cornell, EA .

PHYSICAL REVIEW LETTERS, 2002, 89 (10)

[9] VORTEX DRAG AND THE SPIN-UP TIME SCALE FOR PULSAR GLITCHES [J].

EPSTEIN, RI ;

BAYM, G .

ASTROPHYSICAL JOURNAL, 1992, 387 (01) :276-287

[10] QUANTUM THEORY OF SUPERFLUID VORTICES .I. LIQUID HELIUM 2 [J].

FETTER, AL .

PHYSICAL REVIEW, 1967, 162 (01) :143-+

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