Cosmic censorship and the evolution of d-dimensional charged evaporating black holes

Xu, Hao1,2; Ong, Yen Chin3,4; Yung, Man-Hong1,5

2020-03-06

10.1103/PhysRevD.101.064015

PHYSICAL REVIEW D   影响因子和分区

2470-0010

2470-0029

The cosmic censorship conjecture essentially states that naked singularities should not form from generic initial conditions. Since black hole parameters can change their values under Hawking evaporation, one has to ask whether it is possible to reach extremality by simply waiting for the black hole to evaporate. If so a slight perturbation would likely render the singularity naked. Fortunately, at least for the case of an asymptotically flat 4-dimensional Reissner-Nordstrom black hole, Hiscock and Weems showed that it can never reach extremality despite the fact that for a sufficiently massive black hole, its charge-to-mass ratio can increase during Hawking evaporation. Hence, cosmic censorship is never violated by Hawking emission. However, we know that under some processes, it is easier to violate cosmic censorship in higher dimensions; therefore, it is crucial to generalize the Hiscock and Weems model to dimensions above four to check cosmic censorship. We found that Hawking evaporation cannot lead to violation of cosmic censorship even in higher dimensional Reissner-Nordstrom spacetimes. Moreover, it seems to be more difficult to reach extremality as the number of dimensions increases.

SCI

英语

第一 ; 通讯

Natural Science Foundation of Jiangsu Province[BK20170479]

Astronomy & Astrophysics ; Physics

Astronomy & Astrophysics ; Physics, Particles & Fields

WOS:000518459600003

AMER PHYSICAL SOC

PHYSICS

Web of Science

1.Southern Univ Sci & Technol, Inst Quantum Sci & Engn, Dept Phys, Shenzhen 518055, Peoples R China
2.Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China
3.Yangzhou Univ, Coll Phys Sci & Technol, Ctr Gravitat & Cosmol, 180 Siwangting Rd, Yangzhou 225002, Jiangsu, Peoples R China
4.Shanghai Jiao Tong Univ, Sch Aeronaut & Astronaut, Shanghai 200240, Peoples R China
5.Southern Univ Sci & Technol Shenzhen, Shenzhen Key Lab Quantum Sci & Engn, Shenzhen 518055, Peoples R China

Xu, Hao,Ong, Yen Chin,Yung, Man-Hong. Cosmic censorship and the evolution of d-dimensional charged evaporating black holes[J]. PHYSICAL REVIEW D,2020,101(6).

Xu, Hao,Ong, Yen Chin,&Yung, Man-Hong.(2020).Cosmic censorship and the evolution of d-dimensional charged evaporating black holes.PHYSICAL REVIEW D,101(6).

Xu, Hao,et al."Cosmic censorship and the evolution of d-dimensional charged evaporating black holes".PHYSICAL REVIEW D 101.6(2020).