Abelian Chern-Simons term in superfluid 3He-A

被引：37

作者：

Goryo, J ^{[1
]}

Ishikawa, K ^{[1
]}

机构：

[1] Hokkaido Univ, Dept Phys, Sapporo, Hokkaido 060, Japan

来源：

PHYSICS LETTERS A | 1998年 / 246卷 / 06期

关键词：

D O I：

10.1016/S0375-9601(98)00438-1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show in this paper that an Abelian Chern-Simons term is induced in (2 + 1)- and (3 + 1)-dimensional rotating superfluid He-3-A and that it plays an important role in its dynamics. Because U(1) symmetry is spontaneously broken in He-3-A, a Goldstone mode appears and contributes to the induced Chern-Simons term. We found that the coefficient of the Chern-Simons term, which is equivalent to Hall conductance, depends on an infra-red cut-off of the Goldstone mode, and that the orbital angular momentum of He-3-A in a cylinder geometry is derived from the Chern-Simons term. (C) 1998 Elsevier Science B.V.

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页码：549 / 559

页数：11

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