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arXiv 1206.4844hep-th
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自由N=4超杨米尔斯的关联函数和表示基

Correlation functions and representation bases in free N=4 Super Yang-Mills

Yusuke Kimura

摘要:

本文研究了N=4对称模在零耦合时的精确关联函数。已知用对称群/Brauer代数的不可约表示来标记局部规范不变算子是方便的。我们首先从自由理论的增强对称结构的角度回顾了表示基的构造。我们提出了一个基础的多矩阵模型使用元素的Brauer代数,推广我们以前的建设两个矩阵。我们将计算具有精确N依赖性的基的多点函数。特别地,我们研究了一类BPS算子的三点函数,发现它们是由Brauer代数的分支规则给出的。三点函数采取因式分解的形式,如果表示的运营商满足一个关系。

英文摘要:

We study exact correlation functions of N=4 SYM at zero coupling. It has been known that it is convenient to label local gauge invariant operators by irreducible representations of symmetric groups/Brauer algebras. We first review the construction of representation bases from the viewpoint of the enhanced symmetry structure of the free theory. We present a basis of multi-matrix models using elements of Brauer algebras, generalising our previous construction for two matrices. We will compute multi-point functions of the basis with the exact N-dependence. In particular we study three-point functions of a class of BPS operators, and we find that they are given by a branching rule of the Brauer algebra. The three-point functions take a factorised form if representations on the operators satisfy a relation.

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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