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Dynamical analysis of a first order theory of bulk viscosity

Publication at Faculty of Mathematics and Physics |
2018

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 Disconzi el al (2015 Phys.

Rev. D 91 043532), and the analysis is carried out in a compactificd parameter space with dimensionless coordinates.

We provide stability properties, cosmological interpretation and thermodynamic features of the critical points.