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Quantum instability of gravitational collapse in de Sitter space

Journal Article · · Phys. Rev. D; (United States)
The vacuum stress-energy tensor of a quantized conformal scalar field is examined for several candidate vacuum states in a (two-dimensional) asymptotically de Sitter space around a collapsing star. The vacuum stress energy is shown to diverge on the future black-hole event horizon if the vacuum state is chosen so that the stress energy is regular on the cosmological horizons. It does not appear possible to find a quantum vacuum state whose stress energy is nondivergent on both the cosmological event horizons and the future black-hole event horizon.
Research Organization:
Department of Physics, Montana State University, Bozeman, Montana 59717
OSTI ID:
6435939
Journal Information:
Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 39:4; ISSN PRVDA
Country of Publication:
United States
Language:
English