Quantum coherence in two dimensions

S. W. Hawking and J. D. Hayward
Phys. Rev. D 49, 5252 – Published 15 May 1994
An article within the collection: The Work of Stephen Hawking in Physical Review
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Abstract

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.

  • Received 28 May 1993

DOI:https://doi.org/10.1103/PhysRevD.49.5252

©1994 American Physical Society

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This article appears in the following collection:

The Work of Stephen Hawking in Physical Review

To mark the passing of Stephen Hawking, we gathered together his 55 papers in Physical Review D and Physical Review Letters. They probe the edges of space and time, from "Black holes and thermodynamics” to "Wave function of the Universe."

Authors & Affiliations

S. W. Hawking* and J. D. Hayward

  • Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Silver Street, Cambridge CB3 9EW, United Kingdom
  • California Institute of Technology, Pasadena, California 91125

  • *Electronic address: S.W. Hawking@amtp.cam.ac.uk
  • Electronic address: J.D.Hayward@amtp.cam.ac.uk

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Issue

Vol. 49, Iss. 10 — 15 May 1994

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