Unusual States of Vortex Matter in Mixtures of Bose-Einstein Condensates on Rotating Optical Lattices

被引：23

作者：

Dahl, E. K. ^{[1
]}

Babaev, E. ^{[2
,3
]}

Sudbo, A. ^{[1
]}

机构：

[1] Norwegian Univ Sci & Technol, Dept Phys, N-7491 Trondheim, Norway

[2] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA

[3] Royal Inst Technol, Dept Theoret Phys, S-10691 Stockholm, Sweden

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.101.255301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In a single-component superfluid under rotation a broken symmetry in the order parameter space results in a broken translational symmetry in real space: a vortex lattice. If translational symmetry is restored, the phase of the order parameter disorders and thus the broken symmetry in the order parameter space is also restored. We show that for Bose-Einstein condensate mixtures in optical lattices with negative dissipationless drag, a new situation arises. This state is a modulated vortex liquid which breaks translational symmetry in the direction transverse to the rotation vector.

引用

页数：4

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