Dynamics of a single vortex line in a Bose-Einstein condensate

被引：6

作者：

Bretin, V ^{[1
]}

Rosenbusch, P ^{[1
]}

Dalibard, J ^{[1
]}

机构：

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

来源：

JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS | 2003年 / 5卷 / 02期

关键词：

Bose-Einstein condensates; quantized vortices; superfluidity; cold atoms;

D O I：

10.1088/1464-4266/5/2/354

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study experimentally the line of a single vortex in a rotating prolate Bose-Einstein condensate confined in a harmonic potential. In agreement with predictions, we find that the vortex line is in most cases curved at the ends. We also present measurements of the quadrupole oscillation of the condensate in the presence of a single vortex. A theoretical treatment to account for the short time and long time behaviours of these modes is developed. Finally, we use these measurements to infer the angular momentum per particle and relate it to the shape of the vortex line.

引用

页码：S23 / S28

页数：6

共 34 条

[1] Formation and decay of vortex lattices in Bose-Einstein condensates at finite temperatures [J].

Abo-Shaeer, JR ;

Raman, C ;

Ketterle, W .

PHYSICAL REVIEW LETTERS, 2002, 88 (07) :4

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

Abo-Shaeer, JR ;

Raman, C ;

Vogels, JM ;

Ketterle, W .

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

[3] Vortex energy and vortex bending for a rotating Bose-Einstein condensate [J].

Aftalion, A ;

Riviere, T .

PHYSICAL REVIEW A, 2001, 64 (04) :436111-436117

[4]

AFTALION A, 2002, CONDMAT0204475

[5]

BRETIN V, 2003, IN PRESS

[6] Predicted signatures of rotating Bose-Einstein condensates [J].

Butts, DA ;

Rokhsar, DS .

NATURE, 1999, 397 (6717) :327-329

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

Castin, Y ;

Dum, R .

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

[8] 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

[9] 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

[10]

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

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