Hawking radiation energy and entropy from a Bianchi-Smerlak semiclassical black hole

@article{Abdolrahimi2015HawkingRE,
title={Hawking radiation energy and entropy from a Bianchi-Smerlak semiclassical black hole},
author={Shohreh Abdolrahimi and Don N Page},
journal={Physical Review D},
year={2015},
volume={92},
pages={083005}
}
• Published 2 June 2015
• Physics
• Physical Review D
Eugenio Bianchi and Matteo Smerlak have found a relationship between the Hawking radiation energy and von Neumann entropy in a conformal field emitted by a semiclassical two-dimensional black hole. We compare this relationship with what might be expected for unitary evolution of a quantum black hole in four and higher dimensions. If one neglects the expected increase in the radiation entropy over the decrease in the black hole Bekenstein-Hawking $A/4$ entropy that arises from the scattering of…
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References

SHOWING 1-10 OF 11 REFERENCES

Time Dependence of Hawking Radiation Entropy

If a black hole starts in a pure quantum state and evaporates completely by a unitary process, the von Neumann entropy of the Hawking radiation initially increases and then decreases back to zero

Entanglement entropy production in gravitational collapse: covariant regularization and solvable models

• Physics
• 2014
A bstractWe study the dynamics of vacuum entanglement in the process of gravitational collapse and subsequent black hole evaporation. In the first part of the paper, we introduce a covariant

Particle emission rates from a black hole. III. Charged leptons from a nonrotating hole

The Hawking emission rates from a nonrotating black hole of small charge are calculated for electrons and muons and their antiparticles. During the stochastic emission of these charged leptons, the

Entanglement entropy and negative energy in two dimensions

• Physics
• 2014
It is well known that quantum effects can produce negative energy densities, though for limited times. Here we show in the context of two-dimensional CFT that such negative energy densities are

• Page
• Physics
Physical review letters
• 1993
If black hole formation evaporation can be described by an S matrix, information would be expected to come out in black hole radiation. An estimate shows that it may come out initially so slowly, or

Hawking radiation and black hole thermodynamics

An inexhaustive review of Hawking radiation and black hole thermodynamics is given, focusing especially upon some of the historical aspects as seen from the biased viewpoint of a minor player in the

Particle emission rates from a black hole: Massless particles from an uncharged, nonrotating hole

Hawking has predicted that a black hole will emit particles as if it had a temperature proportional to its surface gravity. This paper combines Hawking's quantum formalism with the black-hole

Average entropy of a subsystem.

• Page
• Mathematics
Physical review letters
• 1993
There is less than one-half unit of information, on average, in the smaller subsystem of a total system in a random pure state.

Last gasp of a black hole: unitary evaporation implies non-monotonic mass loss

• Physics
• 2014
We show within the usual two-dimensional approximation that unitarity and the restoration of Minkowski vacuum correlations at the end of black hole evaporation impose unexpected constraints on its

Particle emission rates from a black hole. II. Massless particles from a rotating hole

The calculations of the first paper of this series (for nonrotating black holes) are extended to the emission rates of massless or nearly massless particles from a rotating hole and the consequent