Semi-classical isotropization of the Mixmaster Universe

TL;DR

This paper develops a semi-classical mechanism for the isotropization of the Mixmaster Universe, constructing a wave function that describes anisotropy evolution and highlighting the privileged role of the closed Friedmann-Robertson-Walker configuration.

Contribution

It introduces a semi-classical approach with a meaningful probabilistic wave function for the Mixmaster Universe, emphasizing the importance of large volume regions and the F-R-W configuration.

Findings

Wave function describes anisotropy evolution with respect to the scale factor

Large volume regions favor the closed Friedmann-Robertson-Walker configuration

Semi-classical mechanism leads to isotropization of the Universe

Abstract

A semi-classical mechanism which leads to the isotropization of the Mixmaster Universe is developed. A wave function of this Universe, which has a meaningful probabilistic interpretation, is constructed and it describes the evolution of the anisotropies of the Universe with respect to the isotropic scale factor, which plays the external observer-like role. We show that, once large volume regions are investigated, the closed Friedmann-Robertson-Walker configuration is deeply privileged.