We show that a Reissner–Nordström (RN) black hole can be formed by dropping a charged thin dust shell onto a RN naked singularity. This is in contrast to the fact that a RN naked singularity is prohibited from forming by dropping a charged thin dust shell onto a RN black hole. This implies the strong tendency of the RN singularity to be covered by a horizon in favor of cosmic censorship. We show that an extreme RN black hole can also be formed from a RN naked singularity by the same process in a finite advanced time. We also discuss the evolution of the charged thin dust shells and the causal structure of the resultant space–times. aa The statements expressed in this paper are those of the authors and do not represent the views of Sumitomo Mitsui Banking Corporation or its staff.

中文翻译：

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从裸奇点到黑洞的动力学过渡

我们表明，可以通过将带电的薄尘埃壳掉落到 RN 裸奇点上来形成 Reissner-Nordström (RN) 黑洞。这与通过将带电薄尘壳落入 RN 黑洞来禁止形成 RN 裸奇点的事实形成对比。这意味着 RN 奇点的强烈趋势被有利于宇宙审查的视界所覆盖。我们证明了一个极端的 RN 黑洞也可以在有限的提前时间内通过相同的过程从一个 RN 裸奇点形成。我们还讨论了带电薄尘壳的演化以及由此产生的时空的因果结构。一种一种本文所表达的陈述是作者的陈述，不代表三井住友银行或其员工的观点。