Conformal field theory on the horizon of a BTZ black hole  

作　　者：Jing-Bo Wang Chao-Guang Huang 王晶波;黄超光(Institute for Gravitation and Astrophysics, College of Physics and Electronic Engineering,Xinyang Normal University;Institute of High Energy Physics, Chinese Academy of Sciences)

机构地区：[1]Institute for Gravitation and Astrophysics,College of Physics and Electronic Engineering Xinyang Normal University,Xinyang 464000,China [2]Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Physics C》2018年第12期86-89,共4页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11690022);the Strategic Priority Research Program of the Chinese Academy of Sciences Multi-waveband Gravitational Wave Universe(XDB23040000);Nanhu Scholars Program for Young Scholars of XYNU

摘　　要：In a three-dimensional spacetime with ~egative cosmological constant, general relativity can be written as two copies of SO（2,1） Chern-Simons theory. On a manifold with a boundary, the Chern-Simons theory induces a conformal field theory——Wess-Zumino-Witten theory on the boundary. In this paper, it is shown that with suitable boundary conditions for a Banados-Teitelboim-Zanelli black hole, the Wess-Zumino-Witten theory can reduce to a chiral massless scalar field on the horizon.In a three-dimensional spacetime with ~egative cosmological constant, general relativity can be written as two copies of SO（2,1） Chern-Simons theory. On a manifold with a boundary, the Chern-Simons theory induces a conformal field theory——Wess-Zumino-Witten theory on the boundary. In this paper, it is shown that with suitable boundary conditions for a Banados-Teitelboim-Zanelli black hole, the Wess-Zumino-Witten theory can reduce to a chiral massless scalar field on the horizon.

关 键 词：BTZ black hole Chern-Simons theory WZW theory 

分 类 号：P145.8[天文地球—天体物理]