Strong cosmic censorshiP for a scalar field in a logarithmic-de Sitter black hole  

作　　者：Yiqian Chen Qingyu Gan Guangzhou Guo 

机构地区：[1]Center for Theoretical Physics,College of Physics,Sichuan University,Chengdu,610064,China

出　　处：《Communications in Theoretical Physics》2020年第3期60-68,共9页理论物理通讯（英文版）

基　　金：NSFC(Grant No.11505119,11005016,11875196 and 11375121)。

摘　　要：It has been shown that the quasinormal modes of perturebated fields can be used to investigate the validity of strong cosmic censorship(SCC).Relevant issues for Reissner-Nordstrom-de Sitter(RN-dS)black holes and Born-Infeld-de Sitter black holes have been discussed.In this paper,we investigate SCC in an asymptotic RN-dS black hole with logarithmic nonlinear electromagnetic field perturbed by massless scalar fields.It has been argued that SCC can be violated in a near-extremal RN-dS black hole.However,we find that the NLED effect can rescue SCC for a near-extremal logarithmic-de Sitter black hole.Compared with Born-Infeld model,we find that the NLED effect has similar behavior.It has been shown that the quasinormal modes of perturebated fields can be used to investigate the validity of strong cosmic censorship (SCC).Relevant issues for Reissner-Nordstrom-de Sitter (RN-dS) black holes and Born-Infeld-de Sitter black holes have been discussed.In this paper,we investigate SCC in an asymptotic RN-dS black hole with logarithmic nonlinear electromagnetic field perturbed by massless scalar fields.It has been argued that SCC can be violated in a near-extremal RN-dS black hole.However,we find that the NLED effect can rescue SCC for a near-extremal logarithmic-de Sitter black hole.Compared with Born-Infeld model,we find that the NLED effect has similar behavior.

关 键 词：logarithmic ELECTRODYNAMICS QUASINORMAL mode STRONG COSMIC CENSORSHIP 

分 类 号：P145.8[天文地球—天体物理]