Classical Preheating and Decoherence

Details Classical Preheating and Decoherence Classical Preheating and Decoherence

1996-01-31

arxiv.org/abs/hep-ph/9601377v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 5 figures

Scientific paper

We establish the equivalence between the quantum evolution of spatially homogeneous oscillations of a scalar field and that of an analogous classical system with certain random initial condition. We argue that this observation can be used for numerical simulation of the Universe in the preheating epoch. We also explicitly demonstrate that the phenomenon of parametric resonance that leads to preheating is simultaneously an effective mechanism for generating quantum decoherence of the Universe.

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