Explicit gauge fixing for degenerate multiplets: A generic setup for topological orders

被引：62

作者：

Hatsugai, Y ^{[1
]}

机构：

[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2004年 / 73卷 / 10期

关键词：

chem numbers; degeneracy; topological orders;

D O I：

10.1143/JPSJ.73.2604

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We supply basic tools for the study of the topological order of a multiplet which is an eigenspace of a finite-dimensional normal operator with continuous parameters. We allow intrinsic degeneracies within the multiplet where a well-known standard procedure does not work. As an important example, we give novel expressions for a spin Hall conductance for unitary superconductors with equal spin pairing. Generic topological orders will be treated in this unified manner particularly with nontrivial topological degeneracies.

引用

页码：2604 / 2607

页数：4

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