Observation of vortex phase singularities in Bose-Einstein condensates -: art. no. 080402

被引：232

作者：

Inouye, S

Gupta, S

Rosenband, T

Chikkatur, AP

Görlitz, A

Gustavson, TL

Leanhardt, AE

Pritchard, DE

Ketterle, W

机构：

[1] MIT, Dept Phys, Elect Res Lab, Cambridge, MA 02139 USA

[2] MIT, Harvard Ctr Ultracold Atoms, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.87.080402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have observed phase singularities due to vortex excitation in Bose-Einstein condensates. Vortices were created by moving a laser beam through a condensate. They were observed as dislocations in the interference fringes formed by the stirred condensate and a second unperturbed condensate. The velocity dependence for vortex excitation and the time scale for re-establishing a uniform phase across the condensate were determined.

引用

收藏

页码：804021 / 804024

页数：4

相关论文

共 23 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] Watching dark solitons decay into vortex rings in a Bose-Einstein condensate [J].

Anderson, BP ;

Haljan, PC ;

Regal, CA ;

Feder, DL ;

Collins, LA ;

Clark, CW ;

Cornell, EA .

PHYSICAL REVIEW LETTERS, 2001, 86 (14) :2926-2929

[3] Observation of interference between two Bose condensates [J].

Andrews, MR ;

Townsend, CG ;

Miesner, HJ ;

Durfee, DS ;

Kurn, DM ;

Ketterle, W .

SCIENCE, 1997, 275 (5300) :637-641

[4]

ANDREWS MR, 1998, THESIS MIT CAMBRIDGE

[5] Measurement of the spatial coherence of a trapped Bose gas at the phase transition [J].

Bloch, I ;

Hänsch, TW ;

Esslinger, T .

NATURE, 2000, 403 (6766) :166-170

[6] Detection of vorticity in Bose-Einstein condensed gases by matter-wave interference [J].

Bolda, EL ;

Walls, DF .

PHYSICAL REVIEW LETTERS, 1998, 81 (25) :5477-5480

[7]

CHEVY F, CONDMAT0104545

[8] Generating solitons by phase engineering of a Bose-Einstein condensate [J].

Denschlag, J ;

Simsarian, JE ;

Feder, DL ;

Clark, CW ;

Collins, LA ;

Cubizolles, J ;

Deng, L ;

Hagley, EW ;

Helmerson, K ;

Reinhardt, WP ;

Rolston, SL ;

Schneider, BI ;

Phillips, WD .

SCIENCE, 2000, 287 (5450) :97-101

[9] Optical generation of vortices in trapped Bose-Einstein condensates [J].

Dobrek, L ;

Gajda, M ;

Lewenstein, M ;

Sengstock, K ;

Birkl, G ;

Ertmer, W .

PHYSICAL REVIEW A, 1999, 60 (05) :R3381-R3384

[10]

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