Quantum Coherence in Two Dimensions

Details Quantum Coherence in Two Dimensions Quantum Coherence in Two Dimensions

1993-05-28

arxiv.org/abs/hep-th/9305165v2

Phys.Rev. D49 (1994) 5252-5256

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, DAMTP-R93/15, CALT-68-1861, Tex, 3 appended uuencoded figures

Scientific paper

10.1103/PhysRevD.49.5252

The formation and evaporation of two dimensional black holes are discussed. It is shown that if the radiation in minimal scalars has positive energy, there must be a global event horizon or a naked singularity. The former would imply loss of quantum coherence while the latter would lead to an even worse breakdown of predictability. CPT invariance would suggest that there ought to be past horizons as well. A way in which this could happen with wormholes is described.

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