Mermin-Ho vortex in ferromagnetic spinor Bose-Einstein condensates

被引：133

作者：

Mizushima, T ^{[1
]}

Machida, K

Kita, T

机构：

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

[2] Hokkaido Univ, Div Phys, Sapporo, Hokkaido 0600810, Japan

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.89.030401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Mermin-Ho and Anderson-Toulouse coreless vortices are demonstrated to be thermodynamically stable in ferromagnetic F=1 spinor Bose-Einstein condensates under rotation. We have carried out extensive calculations of the Gross-Pitaevskii equations by assuming uniform density along the z axis and comparing the energies of other competing non-axis-symmetric or singular vortices. The phase diagram is thereby established in a plane of the rotation drive vs the total magnetization. Their stability is also checked by calculating collective modes based on the Bogoliubov equations.

引用

页码：304011 / 304014

页数：4

共 24 条

[1] Skyrmions in a ferromagnetic Bose-Einstein condensate [J].