Proper Field Quantization in Black Hole Spacetimes

Details Proper Field Quantization in Black Hole Spacetimes Proper Field Quantization in Black Hole Spacetimes

1993-08-06

arxiv.org/abs/hep-th/9308030v1

Ann.Phys.244:272-282,1995

Physics

High Energy Physics

High Energy Physics - Theory

16 pages, REVTEX

Scientific paper

10.1006/aphy.1995.1114

Canonical quantization of local field theories is classical black hole spacetimes with a single horizon leads to a particle number density with a thermal distribution in equilibrium at the Hawking temperature. A complete treatment including non-local quantum gravity effects has shown however that the full "thermal vacuum" of the theory is the false vacuum. In this work we find the true vacuum consistent with the complete semiclassical analysis of quantum black holes. The theory is described by a "microcanonical" quantum field theory with fixed energy E = M, the mass of the black hole. Considerations making use of the microcanonical density matrix as well as the idempotency condition show that particles in black hole backgrounds are described by pure states, unlike the canonical formulation.

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