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arXiv 0711.0176hep-thcond-mat.stat-mechmath.RT
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N=4 SYM中的对角多矩阵关联函数和BPS算子

Diagonal multi-matrix correlators and BPS operators in N=4 SYM

T. W. Brown, P. J. Heslop, S. Ramgoolam

摘要:

本文给出了有限N上自由矩阵场论中具有对角两点函数的多迹多矩阵算子的完备基。这推广到多个矩阵的单一矩阵对角化的舒尔多项式。最重要的是,它涉及到规范群U(N)和整体对称群U(M)与对称群S_n的Clebsch-Gordan系数的纠缠。当应用于N=4的超Yang-Mills时,我们考虑全对称群的U(3)子群。对角化允许描述一个双重的基础上多的痕迹,这使得表征的度量算子变换在短表示在弱耦合。这就为比较AdS_5 × S^5时空中的四分之一和八分之一BPS巨引力子与对偶N=4 SYM的规范不变算符提供了一个框架。

英文摘要:

We present a complete basis of multi-trace multi-matrix operators that has a diagonal two point function for the free matrix field theory at finite N. This generalises to multiple matrices the single matrix diagonalisation by Schur polynomials. Crucially, it involves intertwining the gauge group U(N) and the global symmetry group U(M) with Clebsch-Gordan coefficients of symmetric groups S_n. When applied to N=4 super Yang-Mills we consider the U(3) subgroup of the full symmetry group. The diagonalisation allows the description of a dual basis to multi-traces, which permits the characterisation of the metric on operators transforming in short representations at weak coupling. This gives a framework for the comparison of quarter and eighth-BPS giant gravitons of AdS_5 x S^5 spacetime to gauge invariant operators of the dual N=4 SYM.

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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