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Phys. Rev. Lett. 96, 031103 (2006) [4 pages]

Formation and Evaporation of Nonsingular Black Holes

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Sean A. Hayward
Institute for Gravitational Physics and Geometry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA

Received 5 July 2005; published 26 January 2006

Regular (nonsingular) space-times are given that describe the formation of a (locally defined) black hole from an initial vacuum region, its quiescence as a static region, and its subsequent evaporation to a vacuum region. The static region is Bardeen-like, supported by finite density and pressures, vanishing rapidly at large radius and behaving as a cosmological constant at small radius. The dynamic regions are Vaidya-like, with ingoing radiation of positive-energy flux during collapse and negative-energy flux during evaporation, the latter balanced by outgoing radiation of positive-energy flux and a surface pressure at a pair creation surface. The black hole consists of a compact space-time region of trapped surfaces, with inner and outer boundaries that join circularly as a single smooth trapping horizon.

© 2006 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.96.031103
DOI:
10.1103/PhysRevLett.96.031103
PACS:
04.70.−s