Fundamental decoherence in quantum gravity

Details Fundamental decoherence in quantum gravity Fundamental decoherence in quantum gravity

2005-01-09

arxiv.org/abs/gr-qc/0501027v1

Braz.J.Phys. 35 (2005) 266-270

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

6 pages, to appear in the proceedings of DICE 2004 (Piombino, Italy)

Scientific paper

A recently introduced discrete formalism allows to solve the problem of time
in quantum gravity in a relational manner. Quantum mechanics formulated with a
relational time is not exactly unitary and implies a fundamental mechanism for
decoherence of quantum states. The mechanism is strong enough to render the
black hole information puzzle unobservable.

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