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arXiv 1912.04490gr-qchep-th
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海沃德黑洞由坍缩壳层形成

Formation of the Hayward black hole from a collapsing shell

Hwajin Um, Wontae Kim

摘要:

我们考虑一个坍缩的物质壳层形成海沃德黑洞,并研究了壳层的半经典量子辐射。利用Israel的公式,我们得到了坍缩壳层与Hayward黑洞之间的质量关系。利用无质量量子辐射的泛函薛定谔公式,证明了标量场真空态的演化是幺正的。我们发现,量子的数量在一个低的频率减少了一个大的长度参数表征的海沃德黑洞。此外,在低频极限下,当壳层接近其视界时,Hawking温度可以由激发态的占据数读出。

英文摘要:

We consider a collapsing shell of matter to form the Hayward black hole and investigate semiclassically quantum radiation from the shell. Using the Israel's formulation, we obtain the mass relation between the collapsing shell and the Hayward black hole. By using the functional Schrödinger formulation for the massless quantum radiation, the evolution of a vacuum state for a scalar field is shown to be unitary. We find that the number of quanta at a low frequency decreases for a large length parameter characterizing the Hayward black hole. Moreover, in the limit of low frequency, the Hawking temperature can be read off from the occupation number of excited states when the shell approaches its own horizon.

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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