Back Reaction of Hawking Radiation on Black Hole Geometry

Details Back Reaction of Hawking Radiation on Black Hole Geometry Back Reaction of Hawking Radiation on Black Hole Geometry

1997-05-07

arxiv.org/abs/gr-qc/9705011v1

Phys.Rev. D57 (1998) 1112-1117

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Latex file, 15 pages, 4 figures enclosed, uses epsf

Scientific paper

10.1103/PhysRevD.57.1112

We propose a model for the geometry of a dynamical spherical shell in which the metric is asymptotically Schwarzschild, but deviates from Ricci-flatness in a finite neighbourhood of the shell. Hence, the geometry corresponds to a `hairy' black hole, with the hair originating on the shell. The metric is regular for an infalling shell, but it bifurcates, leading to two disconnected Schwarzschild-like spacetime geometries. The shell is interpreted as either collapsing matter or as Hawking radiation, depending on whether or not the shell is infalling or outgoing. In this model, the Hawking radiation results from tunnelling between the two geometries. Using this model, the back reaction correction from Hawking radiation is calculated.

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