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arXiv 0906.0638hep-th
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四维N=4 SYM到二球和1/8 BPS威尔逊圈的局部化

Localization of the four-dimensional N=4 SYM to a two-sphere and 1/8 BPS Wilson loops

Vasily Pestun

摘要:

我们将四维N=4的超杨-米尔斯理论局部化为两球S^2上的二维约束希钦/希格斯-杨-米尔斯(cHYM)理论。我们证明了4dN =4 SYM中S^2上某些1/8 BPS超对称威尔逊圈的期望值被2dcHYM理论捕获。我们进一步论证了cHYM理论中威尔逊圈的期望值符合“不包括瞬子贡献的二维玻色子杨-米尔斯”的规定。因此,我们支持Drukker、Giombi、Ricci和Trancanelli最近提出的关于4d N=4 SYM中S^2上1/8 BPS威尔逊圈的猜想。

英文摘要:

We localize the four-dimensional N=4 super Yang-Mills theory on a four-sphere to the two-dimensional constrained Hitchin/Higgs-Yang-Mills (cHYM) theory on a two-sphere S^2. We show that expectation values of certain 1/8 BPS supersymmetric Wilson loops on S^2 in the 4d N=4 SYM is captured by the 2d cHYM theory. We further argue that expectation values of Wilson loops in the cHYM theory agree with the prescription "two-dimensional bosonic Yang-Mills excluding instanton contributions". Hence, we support the recent conjecture by Drukker, Giombi, Ricci and Trancanelli on the 1/8 BPS Wilson loops on S^2 in the 4d N=4 SYM.

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