Creation of unstable particles and decoherence in semiclassical cosmology

Details Creation of unstable particles and decoherence in semiclassical cosmology Creation of unstable particles and decoherence in semiclassical cosmology

1998-11-04

arxiv.org/abs/gr-qc/9811016v2

Gen.Rel.Grav. 31 (1999) 1407-1422

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

latex file; 18 pages. Some changes have been added. To appear in Gen. Rel. and Grav

Scientific paper

We consider a simple cosmological model in order to show the importance of
unstable particle creation for the validity of the semiclassical approximation.
Using the mathematical structure of rigged Hilbert spaces we show that particle
creation is the seed of decoherence which enables the quantum to classical
transition.

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