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arXiv 1708.04698gr-qc
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关于非奇异黑洞的注记

Remarks on non-singular black holes

Valeri P. Frolov

摘要:

我们简要讨论了非奇异黑洞模型,主要集中在非奇异蒸发黑洞的性质。这样的黑洞拥有一个视视界,然而事件视界可能不存在。在这种情况下,来自黑洞内部的信息可能会在黑洞完全蒸发之后到达外部观察者。该模型可用于解决信息丢失问题。然而,正如我们所证明的,在一般情况下,从黑洞内部发射的量子辐射,在给定的黑洞背景下计算,是非常大的。对于具有红移函数$α=1$的模型,这种辐射的爆发是指数级的。我们表明,它可以被抑制,包括一个非平凡的红移函数。然而,即使这种抑制也不足以保证模型的自洽性。这个问题是一个普遍问题的表现,被称为“大规模通货膨胀”。我们简要地评论可能的方法来克服这个问题的非奇异蒸发黑洞模型。

英文摘要:

We briefly discuss non-singular black hole models, with the main focus on the properties of non-singular evaporating black holes. Such black holes possess an apparent horizon, however the event horizon may be absent. In such a case, the information from the black hole interior may reach the external observer after the complete evaporation of the black hole. This model might be used for the resolution of the information loss puzzle. However, as we demonstrate, in a general case the quantum radiation emitted from the black hole interior, calculated in the given black hole background, is very large. This outburst of the radiation is exponentially large for models with the redshift function $α=1$. We show that it can be suppressed by including a non-trivial redshift function. However, even this suppression is not enough to guarantee self-consistency of the model. This problem is a manifestation of a general problem, known as the "mass inflation". We briefly comment on possible ways to overcome this problem in the models of non-singular evaporating black holes.

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