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arXiv · 1808.09202

Dynamical analysis of a first order theory of bulk viscosity

Giovanni Acquaviva·Aroonkumar Beesham
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Abstract

We perform a global analysis of curved Friedmann-Robertson-Walker cosmologies in the presence of a viscous fluid. The fluid's bulk viscosity is governed by a first order theory recently proposed in [M. M. Disconzi, T. W. Kephart, and R. J. Scherrer, Phys. Rev. D 91, 043532 (2015)], and the analysis is carried out in a compactified parameter space with dimensionless coordinates. We provide stability properties, cosmological interpretation and thermodynamic features of the critical points.

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Giovanni Acquaviva, Aroonkumar Beesham. 2018-08-28. Dynamical analysis of a first order theory of bulk viscosity. https://doi.org/10.1088/1361-6382%2Faadb38

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