Abstract
In this work, we present an analysis of the phantom zone in a causal viscous cosmology from a thermodynamic point of view. In this description, we consider a chemical potential and the approach of irreversible processes. We assume a flat universe filled with a single dissipative fluid described by a barotropic equation of state, p=ωρ. This model allows us to construct a negative chemical potential for the phantom regime and have positive definite temperature and entropy.
Original language | English |
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Article number | 083515 |
Journal | Physical Review D |
Volume | 98 |
Issue number | 8 |
DOIs | |
State | Published - 15 Oct 2018 |