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arXiv · gr-qc/9812070

The Universe With Bulk Viscosity

Arbab I. Arbab
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Abstract

Exact solutions for a model with variable $G$, $Λ$ and bulk viscosity are obtained. Inflationary solutions with constant (de Sitter-type) and variable energy density are found. An expanding anisotropic universe is found to isotropize during its course of expansion but a static universe is not. The gravitational constant is found to increase with time and the cosmological constant decreases with time as $Λ\propto t^{-2}$.

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Arbab I. Arbab. 2003-04-25. The Universe With Bulk Viscosity. https://doi.org/10.1088/1009-9271%2F3%2F2%2F113

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