Weak cosmic censorship in Kerr-Sen black hole under charged scalar field

被引:31
作者
Gwak, Bogeun [1 ]
机构
[1] Dongguk Univ, Div Phys & Semicond Sci, Seoul 04620, South Korea
来源
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2020年 / 03期
基金
新加坡国家研究基金会;
关键词
modified gravity; quantum black holes; TRANSFORMATIONS; CONJECTURE;
D O I
10.1088/1475-7516/2020/03/058
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We investigate the weak cosmic censorship conjecture for Kerr-Sen black holes, which are solutions to the four-dimensional low-energy effective field theory for the heterotic string theory, based on the scattering of a charged scalar field. When the fluxes of the scalar field are assumed to transfer its conserved quantities to the black hole, extremal and near-extremal black holes cannot be over-spun and over-charged in their first-order variations, which is sufficient to conclude that the weak cosmic censorship conjecture is valid for Kerr-Sen black holes. We confirm our conclusion by relating it to the first, second, and third laws of thermodynamics.
引用
收藏
页数:16
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