Decoherence, Re-coherence, and the Black Hole Information Paradox
Preprint
- 30 November 1994
Abstract
We analyze a system consisting of an oscillator coupled to a field. With the field traced out as an environment, the oscillator loses coherence on a very short {\it decoherence timescale}; but, on a much longer {\it relaxation timescale}, predictably evolves into a unique, pure (ground) state. This example of {\it re-coherence} has interesting implications both for the interpretation of quantum theory and for the loss of information during black hole evaporation. We examine these implications by investigating the intermediate and final states of the quantum field, treated as an open system coupled to an unobserved oscillator.Keywords
All Related Versions
- Version 1, 1994-11-30, ArXiv
- Published version: Physical Review D, 52 (4), 2221.
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