Causality of black holes in 4-dimensional Einstein-Gauss-Bonnet-Maxwell theory

被引：35

作者：

Ge, Xian-Hui ^{[1
,3
]}

Sin, Sang-Jin ^{[2
]}

机构：

[1] Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China

[2] Hanyang Univ, Dept Phys, Seoul 133791, South Korea

[3] Yangzhou Univ, Ctr Gravitat & Cosmol, Coll Phys Sci & Technol, Yangzhou 225009, Jiangsu, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL C | 2020年 / 80卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

TENSOR;

D O I：

10.1140/epjc/s10052-020-8288-9

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 study charged black hole solutions in 4-dimensional (4D) Einstein-Gauss-Bonnet-Maxwell theory to the linearized perturbation level. We first compute the shear viscosity to entropy density ratio. We then demonstrate how bulk causal structure analysis imposes an upper bound on the Gauss-Bonnet coupling constant in the AdS space. Causality constrains the value of Gauss-Bonnet coupling constant alpha(GB) to be bounded by alpha(GB) <= 0 as D -> 4.

引用

页数：6

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