Instability of the nonvortex state toward a quantized vortex in a Bose-Einstein condensate under external rotation

被引：59

作者：

Isoshima, T ^{[1
]}

Machida, K ^{[1
]}

机构：

[1] Okayama Univ, Dept Phys, Okayama 7008530, Japan

来源：

PHYSICAL REVIEW A | 1999年 / 60卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.60.3313

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The instability condition of the nonvortex state toward vortex formation is examined within the Bogoliubov theory when a Bose-Einstein condensate is under externally forced rotation. The obtained critical angular velocity combined with the previous stability conditions for a vortex yields a detailed phase diagram in the critical velocity vs the system parameter. This facilitates vortex formation experiments for alkali-metal-atom gases confined in a harmonic potential. [S1050-2947(99)01410-9].

引用

页码：3313 / 3316

页数：4

共 23 条

[1]

Bogolyubov N. N., 1947, J. Phys. (USSR), V11, P23

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