Spinor bosonic atoms in optical lattices: Symmetry breaking and fractionalization

被引：203

作者：

Demler, E ^{[1
]}

Zhou, F

机构：

[1] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[2] NEC Res Inst, Princeton, NJ 08540 USA

[3] Univ Utrecht, Inst Theoret Phys, NL-3584 CC Utrecht, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 16期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.88.163001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study superfluid and Mott insulator phases of cold spin-1 Bose atoms with antiferromagnetic interactions in an optical lattice, including a usual polar condensate phase, a condensate of singlet pairs, a crystal spin nematic phase, and a spin singlet crystal phase. We suggest a possibility of exotic fractionalized phases of spinor Bose-Einstein condensates and discuss them in the language of Z(2) lattice gauge theory.

引用

页数：4

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