A holographic study of the a-theorem and RG flow in general quadratic curvature gravity

被引：6
|
作者：
Siahvoshan, Malihe [1 ]
Ghodsi, Ahmad [1 ]
机构：
[1] Ferdowsi Univ Mashhad, Fac Sci, Dept Phys, Mashhad, Razavi Khorasan, Iran
来源：
EUROPEAN PHYSICAL JOURNAL C | 2019年 / 79卷 / 10期
关键词：
ADS/CFT CORRESPONDENCE; RENORMALIZATION; SPACETIME;
D O I：
10.1140/epjc/s10052-019-7345-8
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 use the holographic language to show the existence of the a-theorem for even dimensional CFTs, dual to the AdS space in general quadratic curvature gravity. We find the Wess-Zumino action which is originated from the spontaneous breaking of the conformal symmetry in d <= 8, by using a radial cut-off near the AdS boundary. We also study the RG flow and (average) null energy condition in the space of the couplings of theory. In a simple toy model, we find the regions where this holographic RG flow has a monotonic decreasing behavior.
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页数：15
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