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arXiv 0912.5535hep-th
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关于有缺陷的交叉关系

On the crossing relation in the presence of defects

V. B. Petkova

摘要:

在有理CFT和$c>25$ Virasoro(Liouville)理论中都考虑了缺陷线存在时局部算子的OPE。明确地计算了插入亏损算子的四点函数的对偶变换。相关器的两个通道再现了Wilson和't Hooft算子的期望值,最近在刘维理论中讨论了AGT猜想。

英文摘要:

The OPE of local operators in the presence of defect lines is considered both in the rational CFT and the $c>25$ Virasoro (Liouville) theory. The duality transformation of the 4-point function with inserted defect operators is explicitly computed. The two channels of the correlator reproduce the expectation values of the Wilson and 't Hooft operators, recently discussed in Liouville theory in relation to the AGT conjecture.

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