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arXiv 1611.00546hep-th
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二维$\mathcal{N}$ =(2,2)超共形场论的全息Rényi熵

Holographic Rényi entropy for two-dimensional $\mathcal{N}$=(2,2) superconformal field theory

Zhibin Li, Jia-ju Zhang

摘要:

研究了AdS $_3$背景下与$\mathcal N=2$超引力对偶的二维$\mathcal N=(2,2)$超共形场论(SCFT)的全息Rényi熵.在SCFT中,我们有应力张量、电流和它们的超对称伙伴,在超引力中,我们有引力子、矢量场和两个引力子。用$x$与$x^4$的交比展开得到复平面上两个短区间的Rényi互信息,用$q=\exp(-2πβ/L)$展开得到环面上一个区间的Rényi熵,其中$β$为逆温度,$L$为空间周期,为$q^2$ .我们在超引力和SCFT两个方面进行了计算,并找到了匹配的结果。

英文摘要:

We investigate the holographic Rényi entropy for two-dimensional $\mathcal N=(2,2)$ superconformal field theory (SCFT), which is dual to $\mathcal N=2$ supergravity in AdS$_3$ background. In SCFT we have the stress tensor, current, and their supersymmetric partners, and in supergravity we have the graviton, vector field, and two gravitinos. We get the Rényi mutual information of two short intervals on complex plane in expansion by the cross ratio $x$ to order $x^4$, and Rényi entropy of one interval on torus in expansion by $q=\exp(-2πβ/L)$, with $β$ being the inverse temperature and $L$ being the spatial period, to order $q^2$. We calculate in both the supergravity and SCFT sides, and find matches of the results.

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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