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arXiv 2405.04597hep-th
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弱宇宙监督与旋转量子 BTZ 黑洞

Weak cosmic censorship and the rotating quantum BTZ black hole

Antonia M. Frassino, Jorge V. Rocha, Andrea P. Sanna

AI总结:

本文利用携带角动量的测试粒子检验极端量子旋转 BTZ 黑洞的弱宇宙监督猜想,发现量子反作用下黑洞仍无法被过度旋转,且强反作用更抑制违规。

摘要:

弱宇宙监督猜想的检验通过考察黑洞时空中通常存在的曲率奇点是否始终隐藏在事件视界之内,来研究所考虑的引力理论丧失可预测性的可能性。Wald 曾提出一种执行此类检验的可能方法,即尝试向一个极端旋转黑洞投入具有大角动量的测试粒子,以使其过度旋转。本文分析了将测试粒子投入极端量子旋转 BTZ 黑洞所产生的效应;该黑洞的三维度规捕捉了来自强耦合量子共形场的精确反作用。分析表明,尽管纳入了量子效应,并且与经典情形相似,这些摧毁黑洞的尝试注定不会成功。携带最大角动量且仍能落入极端量子 BTZ 黑洞的粒子,至多只能使该黑洞保持极端状态。尽管如此,我们发现数值证据表明,量子场的大反作用倾向于不利于宇宙监督被违反。

英文摘要:

Tests of the weak cosmic censorship conjecture examine the possibility of the breakdown of predictivity of the gravitational theory considered, by checking if curvature singularities typically present in black hole spacetimes are concealed within an event horizon at all times. A possible method to perform such tests was proposed by Wald and consists in trying to overspin an extremal rotating black hole by throwing at it a test particle with large angular momentum. In this paper, we analyze the effects of dropping a test particle into an extremal quantum rotating BTZ black hole, whose three-dimensional metric captures the exact backreaction from strongly coupled quantum conformal fields. Our analysis reveals that, despite the inclusion of quantum effects, and akin to the classical scenario, these attempts to destroy the black hole are doomed to be unsuccessful. Particles carrying the maximum angular momentum and still falling into an extremal quantum BTZ black hole can, at most, leave it extremal. Nevertheless, we found numerical evidence that large backreaction of the quantum fields tends to disfavor violations of cosmic censorship.

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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