Naked singularity, firewall, and Hawking radiation.
Naked singularity, firewall, and Hawking radiation.
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裸奇点、防火墙和霍金辐射
DOI：
10.1038/s41598-017-03854-y
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发表时间：
2017-06-21
影响因子：
4.6
通讯作者：
Zhang H
中科院分区：
文献类型：
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作者：
Zhang H
自从彭罗斯-霍金奇点定理被证明以来，时空奇点一直是人们感兴趣的问题。在坍缩过程中，裸奇点自然地从合理的初始条件中出现。最近在黑洞信息问题中的一个有趣的方法意味着我们需要一个防火墙来打破霍金光子之间的多余纠缠。典型地，防火墙变成了一个裸奇点。我们找到了防火墙型Rn引力的真空解析解，并将这些解作为具体模型来研究裸奇点。利用标准量子理论研究了裸奇点黑洞的Hawking辐射。在这里，我们表明奇点本身并不破坏信息。幺正量子理论在防火墙型奇点附近工作得很好。我们讨论了我们的结果在广义相对论中的有效性。进一步证明了霍金辐射的温度仍然可以用表面引力除以2π的形式表示。这表明，裸奇点可能不会危及Hakwing蒸发过程。
Spacetime singularity has always been of interest since the proof of the Penrose-Hawking singularity theorem. Naked singularity naturally emerges from reasonable initial conditions in the collapsing process. A recent interesting approach in black hole information problem implies that we need a firewall to break the surplus entanglements among the Hawking photons. Classically, the firewall becomes a naked singularity. We find some vacuum analytical solutions inRn-gravity of the firewall-type and use these solutions as concrete models to study the naked singularities. By using standard quantum theory, we investigate the Hawking radiation emitted from the black holes with naked singularities. Here we show that the singularity itself does not destroy information. A unitary quantum theory works well around a firewall-type singularity. We discuss the validity of our result in general relativity. Further our result demonstrates that the temperature of the Hawking radiation still can be expressed in the form of the surface gravity divided by 2π. This indicates that a naked singularity may not compromise the Hakwing evaporation process.