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

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

2010-10-25

arxiv.org/abs/1010.5090v1

Phys.Rev.D82:103524,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

6 pages, accepted for publication in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.82.103524

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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