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4 papers · 2 filters
Horizons of semiclassical black holes are cold
Ram Brustein, A. J. M. Medved
We calculate, using our recently proposed semiclassical framework, the quantum state of the Hawking pairs that are produced during the evaporation of a black hole (BH). Our framewo…
Phases of information release during black hole evaporation
Ram Brustein, A. J. M. Medved
In a recent article, we have shown how quantum fluctuations of the background geometry modify Hawking's density matrix for black hole (BH) radiation. Hawking's diagonal matrix pick…
Restoring predictability in semiclassical gravitational collapse
Ram Brustein, A. J. M. Medved
Hawking showed that the radiation emitted from a classical collapsing shell is thermal. Here, we show that a semiclassical collapsing shell emits radiation that is only approximate…
Semiclassical black holes expose forbidden charges and censor divergent densities
Ram Brustein, A. J. M. Medved
Classically, the black hole (BH) horizon is a rigid surface of infinite redshift; whereas the uncertainty principle dictates that the semiclassical (would-be) horizon cannot be fix…