Invariant and group theoretical integrations over the U(n) group

被引：7

作者：

Aubert, S ^{[1
]}

Lam, CS ^{[1
]}

机构：

[1] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

来源：

JOURNAL OF MATHEMATICAL PHYSICS | 2004年 / 45卷 / 08期

关键词：

D O I：

10.1063/1.1765214

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In a previous article, an "invariant method" to calculate monomial integrals over the U(n) group was introduced. In this paper, we study the more traditional group-theoretical method, and compare its strengths and weaknesses with those of the invariant method. As a result, we are able to introduce a "hybrid method" which combines the respective strengths of the other two methods. There are many examples in the paper illustrating how each of these methods works. (C) 2004 American Institute of Physics.

引用

页码：3019 / 3039

页数：21

共 17 条

[1] Invariant integration over the unitary group [J].