Entanglement entropy for relevant and geometric perturbations

被引：69
作者：
Rosenhaus, Vladimir [1 ]
Smolkin, Michael [2 ,3 ]
机构：
[1] Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA
[2] Univ Calif Berkeley, Ctr Theoret Phys, Berkeley, CA 94720 USA
[3] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2015年 / 02期
基金：
美国国家科学基金会;
关键词：
AdS-CFT Correspondence; Field Theories in Higher Dimensions; Renormalization; Group; BLACK-HOLE ENTROPY; CONFORMAL-INVARIANCE; RENORMALIZATION; THEOREM;
D O I：
10.1007/JHEP02(2015)015
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We continue the study of entanglement entropy for a QFT through a perturbative expansion of the path integral definition of the reduced density matrix. The universal entanglement entropy for a CFT perturbed by a relevant operator is calculated to second order in the coupling. We also explore the geometric dependence of entanglement entropy for a deformed planar entangling surface, finding surprises at second order.
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页数：28
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