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arXiv · 2007.06766

Massive scalar wave packet emission by a charged Black Hole and Cosmic Censorship Conjecture violation

Rodrigo L. Fernandez·Ribamar R. R. Reis·Sergio E. Jorás
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Abstract

We study the tunneling probability of a massive ($m_w$) uncharged scalar packet out from a near-extremal, static charged black hole (with mass $M$ and charge $Q\lesssim M$). We show that there is indeed a net probability that a massive uncharged particle tunnels out from the black hole so that the final state (with new mass $M'\equiv M-m_w < Q$) does violate the cosmic censorship conjecture. Nevertheless, the typical time for such a black hole to discharge (i.e, to absorb charge $-Q$ from its surroundings and then become neutral) is much smaller than the tunneling time; therefore, the violation is never attained in practice. Even for a completely isolated black hole (should it exist), the standard time dilation near the horizon stretches the typical violation time scale to unobservable values.

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Rodrigo L. Fernandez, Ribamar R. R. Reis, Sergio E. Jorás. 2020-07-14. Massive scalar wave packet emission by a charged Black Hole and Cosmic Censorship Conjecture violation. https://doi.org/10.1103/physrevd.102.024049

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