Observation of Incipient Black Holes and the Information Loss Problem

Details Observation of Incipient Black Holes and the Information Loss Problem Observation of Incipient Black Holes and the Information Loss Problem

2006-09-07

arxiv.org/abs/gr-qc/0609024v3

Phys.Rev.D76:024005,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

15 pages; 9 figures. Changes made in response to referee's comments and to clarify arguments, in particular to describe clearl

Scientific paper

10.1103/PhysRevD.76.024005

We study the formation of black holes by spherical domain wall collapse as seen by an asymptotic observer, using the functional Schrodinger formalism. To explore what signals such observers will see, we study radiation of a scalar quantum field in the collapsing domain wall background. The total energy flux radiated diverges when backreaction of the radiation on the collapsing wall is ignored, and the domain wall is seen by the asymptotic observer to evaporate by non-thermal ``pre-Hawking radiation'' during the collapse process. Evaporation by pre-Hawking radiation implies that an asymptotic observer can never lose objects down a black hole. Together with the non-thermal nature of the radiation, this may resolve the black hole information loss problem.

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