Strong cosmic censorship in de Sitter space
Strong cosmic censorship in de Sitter space
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DOI：
10.1103/physrevd.97.104060
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发表时间：
2018-01
影响因子：
5
通讯作者：
Ó. J. Dias;Felicity C. Eperon;H. Reall;Jorge E Santos
中科院分区：
文献类型：
--
作者：
Ó. J. Dias;Felicity C. Eperon;H. Reall;Jorge E Santos
最近的工作表明，强宇宙监督假说被几乎极端的Reissner-Nordstrom-de Sitter黑洞所违背。有人认为，这种黑洞的扰动衰减得足够快，以至于扰动的时空可以作为运动方程的弱解延伸到柯西视界。本文考虑Kerr-de Sitter黑洞的情形。我们发现，对于任何非极值的黑洞参数值，有quasinormal模式衰减足够慢，以确保强宇宙审查的尊重。我们的分析涵盖了标量场和线性化引力摄动。
Recent work indicates that the strong cosmic censorship hypothesis is violated by nearly extremal Reissner-Nordstrom-de Sitter black holes. It was argued that perturbations of such a black hole decay sufficiently rapidly that the perturbed spacetime can be extended across the Cauchy horizon as a weak solution of the equations of motion. In this paper we consider the case of Kerr-de Sitter black holes. We find that, for any nonextremal value of the black hole parameters, there are quasinormal modes which decay sufficiently slowly to ensure that strong cosmic censorship is respected. Our analysis covers both scalar field and linearized gravitational perturbations.