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arXiv · 1010.5090

Semi-Classical Isotropization of the Universe during a de Sitter phase

Francesco Cianfrani·Giovanni Montani·Marco Muccino
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Abstract

Semi-classical states for the Wheeler-DeWitt equation of a Bianchi type I model in the presence of a scalar field are analyzed. It is outlined how this scheme can effectively describe more general situations, where the curvature of the Bianchi type IX model and a proper potential term for the scalar field are present. The introduction of a cosmological constant term accounts for the quasi-isotropization mechanism which bridges the proposed framework with a late isotropic phase. This result makes the semi-classical Bianchi I model a plausible scenario for the Universe pre-inflationary phase.

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Francesco Cianfrani, Giovanni Montani, Marco Muccino. 2010-10-25. Semi-Classical Isotropization of the Universe during a de Sitter phase. https://doi.org/10.1103/physrevd.82.103524

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