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.

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页码：1 / 8

页数：8

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