Vortices in Bose-Einstein condensates confined in a multiply connected Laguerre-Gaussian optical trap

被引：33

作者：

Tempere, J

Devreese, JT

Abraham, ERI

机构：

[1] Univ Instelling Antwerp, Dept Nat Kunde, B-2610 Antwerp, Belgium

[2] Univ Oklahoma, Dept Phys & Astron, Norman, OK 73019 USA

来源：

PHYSICAL REVIEW A | 2001年 / 64卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.64.023603

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The quantized vortex state is investigated in a Bose-Einstein condensate, confined in a multiply connected geometry formed by a Laguerre-Gaussian optical trap. Solving the Gross-Pitaevskii equation variationally, we show that the criterion for vortex stability is that the interatomic interaction strength must exceed a critical interaction strength. The time evolution of a freely expanding Laguerre-Gaussian condensate with a vortex is calculated and used to derive the interference pattern of such a condensate overlapping with a parabolically trapped condensate.

引用

页码：1 / 8

页数：8

共 46 条

[31] Production of two overlapping Bose-Einstein condensates by sympathetic cooling [J].

Myatt, CJ ;

Burt, EA ;

Ghrist, RW ;

Cornell, EA ;

Wieman, CE .

PHYSICAL REVIEW LETTERS, 1997, 78 (04) :586-589

[32] Structure and stability of bosonic clouds: Alkaki-metal atoms with negative scattering length [J].

Parola, A ;

Salasnich, L ;

Reatto, L .

PHYSICAL REVIEW A, 1998, 57 (05) :R3180-R3183

[33]

Pitaevskii L P, 1961, ZH EKSP TEOR FIZ, V40, P646

[34] Vortex stability and persistent currents in trapped Bose gases [J].

Rokhsar, DS .

PHYSICAL REVIEW LETTERS, 1997, 79 (12) :2164-2167

[35]

ROKHSAR DS, CONDMAT9709212

[36] Bosons in a toroidal trap: Ground state and vortices [J].

Salasnich, L ;

Parola, A ;

Reatto, L .

PHYSICAL REVIEW A, 1999, 59 (04) :2990-2995

[37]

Saleh B. E. A., 2007, FUNDAMENTALS PHOTONI

[38] Optical confinement of a Bose-Einstein condensate [J].

Stamper-Kurn, DM ;

Andrews, MR ;

Chikkatur, AP ;

Inouye, S ;

Miesner, HJ ;

Stenger, J ;

Ketterle, W .

PHYSICAL REVIEW LETTERS, 1998, 80 (10) :2027-2030

[39] Stability of a vortex in a trapped Bose-Einstein condensate [J].

Svidzinsky, AA ;

Fetter, AL .

PHYSICAL REVIEW LETTERS, 2000, 84 (26) :5919-5923

[40] Dynamics of a vortex in a trapped Bose-Einstein condensate [J].

Svidzinsky, AA ;

Fetter, AL .

PHYSICAL REVIEW A, 2000, 62 (06) :063617-063611

← 1 2 3 4 5 →