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arxiv: hep-th/9209008 · v1 · submitted 1992-09-02 · ✦ hep-th · gr-qc

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Semiclassical Approach to Black Hole Evaporation

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classification ✦ hep-th gr-qc
keywords blackdimensionalevaporationholecghsmodelmodelsnaked
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Black hole evaporation may lead to massive or massless remnants, or naked singularities. This paper investigates this process in the context of two quite different two dimensional black hole models. The first is the original CGHS model, the second is another two dimensional dilaton-gravity model, but with properties much closer to physics in the real, four dimensional, world. Numerical simulations are performed of the formation and subsequent evaporation of black holes and the results are found to agree qualitatively with the exactly solved modified CGHS models, namely that the semiclassical approximation breaks down just before a naked singularity appears.

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Cited by 3 Pith papers

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    Semiclassical black hole evaporation in four dimensions produces a thunderbolt singularity signaling breakdown of the effective theory at large distances.

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    Black hole scrambling suppresses and eventually eliminates late-time entanglement revivals in CFT mutual information for disjoint intervals, with spikes vanishing when interval lengths become exponential in the scramb...