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arXiv 0903.2365hep-thgr-qcnucl-thquant-ph
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Kerr-Schild几何的类束激发与黑洞蒸发的半经典机制

Beam-like Excitations of Kerr-Schild Geometry and Semiclassical Mechanism of Black-Hole Evaporation

Alexander Burinskii

摘要:

已经观察到,Kerr-Schild(KS)几何的电磁(EM)激发的精确解形成出射光束,该光束对度规具有非常强的反作用,并打破黑洞视界。因此,黑洞与附近电磁场和电磁真空的相互作用必须由一组涨落的微孔覆盖视界。我们对黑洞电磁激发的Debney-Kerr-Schild方程进行了积分和分析,得到了出射辐射的精确解包含两个相关但完全不同的分量,这揭示了黑洞蒸发的一种可能的半经典机制:a)第一分量由奇异光束脉冲组成,该奇异光束脉冲穿透视界,打破其不可穿透性,b)另一种成分是规则的,与已知的Vaidya "闪亮之星"辐射类似,是造成质量损失的原因。我们还证明了Kerr-Schild几何中神秘的双片扭量结构与Stephens,t 'Hooft和Whiting预言的量子黑洞时空的全息结构相对应。由此产生的波动扭曲光束的克尔-席德几何采取了经典和量子引力之间的中间位置。

英文摘要:

It has been observed that exact solutions for electromagnetic (EM) excitations of the Kerr-Schild (KS) geometry form outgoing beams which have very strong back reaction to metric and break the black hole horizon. As a result, interaction of a black hole with nearby electromagnetic field and electromagnetic vacuum has to cover the horizon by a set of fluctuating microholes. We integrate and analyze the Debney-Kerr-Schild equations for electromagnetic excitations of a black-hole and obtain that the exact solutions for outgoing radiation contain two related but radically different components which shed light on a possible semi-classical mechanism of black-hole evaporation: a) first component consists of the singular beam pulses which perforate horizon, breaking its impenetrability, and b) another component is regular and responsible for the loss of mass similar to the known Vaidya `shining star' radiation. We show also that the mysterious twosheeted twistor structure of the Kerr-Schild geometry corresponds to a holographic structure of quantum black hole spacetimes predicted by Stephens, t' Hooft and Whiting. The resulting Kerr-Schild geometry of fluctuating twistor-beams takes an intermediate position between the classical and quantum gravity.

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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