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arXiv math-ph/0209019math-phcond-mathep-thmath.COmath.MP
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关于U(N)酉群上的积分及其大N极限

On some integrals over the U(N) unitary group and their large N limit

P. Zinn-Justin, J. -B. Zuber

摘要:

重新研究了U(N)酉群$I=\int DU \exp\Tr A U B U^\dagger$上的积分.首先回顾各种方法和扩展。下半年的文件涉及更近期的事态发展:关系与可积户田格层次,图形扩展和组合学,并就他们教我们的大$N$极限的$\log I$。

英文摘要:

The integral over the U(N) unitary group $I=\int DU \exp\Tr A U B U^\dagger$ is reexamined. Various approaches and extensions are first reviewed. The second half of the paper deals with more recent developments: relation with integrable Toda lattice hierarchy, diagrammatic expansion and combinatorics, and on what they teach us on the large $N$ limit of $\log I$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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