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arXiv 2302.04738gr-qchep-th
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加速时空中的强宇宙监督假设

Strong Cosmic Censorship in accelerating spacetime

Ming Zhang, Jie Jiang

AI总结:

本文研究加速黑洞在标量场扰动下的柯西视界不稳定性,发现其在近极端及加速趋于零的渐近平坦极限下违反强宇宙监督假设,首次给出无电荷无旋转黑洞违反SCCC的例子。

摘要:

已有研究确立,强宇宙监督假设(SCCC)受到带电荷的渐近平坦黑洞的支持,但被带电的渐近德西特黑洞所违反。我们研究了爱因斯坦理论与标量场共形耦合下加速黑洞的柯西视界不稳定性。该黑洞不带电,但具有内视界、外视界和加速视界。在加速趋于零的极限(记为 $A \ o 0$)下,它变为渐近平坦且极端,其加速视界也随之消失。通过探索无质量标量场对加速黑洞的扰动,其衰减率由准正则模式谱决定,我们证明在近极端区域以及 $A\ o 0^+$ 极限下,SCCC 被违反。我们的结果是首次观察到黑洞在几乎渐近闵可夫斯基平坦的区域中违反 SCCC,也是首个既不依赖电荷也不依赖旋转而违反 SCCC 的黑洞实例。

英文摘要:

It has been established that Strong Cosmic Censorship Conjecture (SCCC) is respected by an asymptotically flat black hole with charge, but violated by a charged asymptotically de Sitter black hole. We studied the instability of the Cauchy horizon for an accelerating black hole in Einstein theory conformally coupled with a scalar field. The black hole is uncharged while having inner, outer, and acceleration horizons. In the limit of vanishing acceleration, denoted by $A \to 0$, it becomes asymptotically flat and extremal, with its acceleration horizon vanishing as well. By exploring the perturbation of the massless scalar field upon the accelerating black hole, whose decay rate is governed by the quasinormal mode spectra, we show that the SCCC is violated in the near-extremal regime and also in the $A\to 0^+$ limit. Our result is the first observation of a black hole violating the SCCC in an almost asymptotically Minkowskian flat regime, as well as the first example of a black hole violating the SCCC with neither charge nor rotation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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