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arXiv 2204.03314gr-qcastro-ph.HEhep-th
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带电粒子在裸奇点附近的衰变和无微调的超Penrose过程

Decay of charged particles near naked singularities and super-Penrose process without fine-tuning

O. B. Zaslavskii

摘要:

我们考虑Reissner-Nordström度规中裸奇点附近的Penrose过程。粒子0从无穷大下落,在某个点$r_{0}$衰变为两个碎片。我们表明,由于这个过程中的能量提取可以无限大的限制$r_{0}\rightarrow 0$。在这样做时,粒子电荷的值可以保持有界,这与先前已知的在具有无界能量提取的电场中的彭罗斯过程的示例相反。即使在平坦起搏时间的限制下,该效应也持续存在。

英文摘要:

We consider the Penrose process near the naked singularity in the Reissner-Nordström metric. Particle 0 falls from infinity and decays to two fragments at some point $r_{0}$. We show that the energy extraction due to this process can be indefinitely large in the limit $r_{0}\rightarrow 0$. In doing so, the value of the particle charge can remain bounded, in contrast to the previously known examples of the Penrose process in the electric field with unbounded energy extraction. The effect persists even in the limit of the flat pace-time.

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