On the evolution of a large class of inhomogeneous scalar field cosmologies
J. Ibanez, I. Olasagasti
TL;DR
This paper analyzes the long-term behavior of inhomogeneous scalar field cosmologies with exponential potentials, revealing that inhomogeneities prevent isotropization in certain parameter regimes.
Contribution
It provides a comprehensive analysis of inhomogeneous scalar field cosmologies, extending previous homogeneous models by examining the effects of inhomogeneities on evolution.
Findings
Models with k^2<2 do not isotropize due to inhomogeneities
New variables enable near-complete analysis of cosmological evolution
Inhomogeneities significantly influence asymptotic behavior
Abstract
The asymptotic behaviour of a family of inhomogeneous scalar field cosmologies with exponential potential is studied. By introducing new variables we can perform an almost complete analysis of the evolution of these cosmologies. Unlike the homogeneous case (Bianchi type solutions), when k^2<2 the models do not isotropize due to the presence of the inhomogeneities
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