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arXiv 2202.06990hep-th
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$\mathcal{N}=2$超共形规范理论中的三点函数及其强耦合极限

Three-point functions in a $\mathcal{N}=2$ superconformal gauge theory and their strong-coupling limit

M. Billo, M. Frau, A. Lerda, A. Pini, P. Vallarino

摘要:

本文研究了四维$\mathcal{N}=2$ SYM理论中单迹标量算符的三点函数,该理论具有规范群$\mathrm{SU}(N)$和对称加反对称表象中的物质,其中$β$ -函数为零.通过将此计算映射到由4-球上的局部化产生的矩阵模型,我们能够在大- $N$ t Hooft极限下恢复微扰展开,并导出微扰子在强耦合下的行为。最后,将我们关于三点函数的结果与最近发现的关于二点函数的结果相结合,得到了强耦合下该共形场论的归一化三点系数,并发现它们以一种简单的方式依赖于单迹算子的共形维数.

英文摘要:

We study the 3-point functions of single-trace scalar operators in a four-dimensional $\mathcal{N}=2$ SYM theory with gauge group $\mathrm{SU}(N)$ and matter in the symmetric plus anti-symmetric representation, which has a vanishing $β$-function. By mapping this computation to the matrix model arising from localization on a 4-sphere we are able to resum the perturbative expansion in the large-$N$ 't Hooft limit and derive the behavior of the correlators at strong coupling. Finally, by combining our results on the 3-point functions with those on the 2-point functions that have been recently found, we obtain the normalized 3-point coefficients of this conformal field theory at strong coupling and find that they depend in a simple way on the conformal dimensions of the single-trace operators.

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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