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arXiv 1708.05080hep-thcond-mat.stat-mechgr-qc
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AdS4/BCFT3中角点对全息纠缠熵的贡献

Corner contributions to holographic entanglement entropy in AdS4/BCFT3

Domenico Seminara, Jacopo Sisti, Erik Tonni

摘要:

利用三维边界共形场论,研究了AdS 4/BCFT 3对应中带角点的空间区域的全息纠缠熵.我们解析计算对应于一个无限的楔形有一个边缘上的边界上的角函数。观察到这个角函数与应力张量的全息单点函数之间的关系。本文还提供了一个只有尖端在边界上的无限长楔形体的角函数的解析表达式。该公式要求在面积泛函的两个极值中找到全局最小值。研究了相应的角点临界位形。通过计算锚定到包含角的一些有限域的最小表面的面积来进行数值分析,检查了结果。

英文摘要:

We study the holographic entanglement entropy of spatial regions with corners in the AdS4/BCFT3 correspondence by considering three dimensional boundary conformal field theories whose boundary is a timelike plane. We compute analytically the corner function corresponding to an infinite wedge having one edge on the boundary. A relation between this corner function and the holographic one point function of the stress tensor is observed. An analytic expression for the corner function of an infinite wedge having only its tip on the boundary is also provided. This formula requires to find the global minimum among two extrema of the area functional. The corresponding critical configurations of corners are studied. The results have been checked against a numerical analysis performed by computing the area of the minimal surfaces anchored to some finite domains containing corners.

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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