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arXiv 0904.4486hep-th
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N=4超Yang-Mills中的量子t Hooft算子和S-对偶

Quantum 't Hooft operators and S-duality in N=4 super Yang-Mills

Jaume Gomis, Takuya Okuda, Diego Trancanelli

摘要:

我们给出了一个t Hooft圈算符的量子路径积分定义,它在四维规范理论中插入了一个点状的环.本文用微扰论的方法计算了N=4超Yang-Mills中任意规范群G的圆t Hooft算子的期望值。在强耦合展开下,我们还计算了循环威尔逊圈算子的期望值.在弱耦合展开式中计算t Hooft环算子的结果精确地再现了S-对偶作用下约束对偶威尔逊圈算子的强耦合结果。本文首次证明了N=4超杨-米尔斯系统中的关联函数具有S-对偶性。

英文摘要:

We provide a quantum path integral definition of an 't Hooft loop operator, which inserts a pointlike monopole in a four dimensional gauge theory. We explicitly compute the expectation value of the circular 't Hooft operators in N=4 super Yang-Mills with arbitrary gauge group G up to next to leading order in perturbation theory. We also compute in the strong coupling expansion the expectation value of the circular Wilson loop operators. The result of the computation of an 't Hooft loop operator in the weak coupling expansion exactly reproduces the strong coupling result of the conjectured dual Wilson loop operator under the action of S-duality. This paper demonstrates - for the first time - that correlation functions in N=4 super Yang-Mills admit the action of S-duality.

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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