Regular Article - Theoretical Physics
Universe consisting of diffusive dark fluids: thermodynamics and stability analysis
Department of Mathematics, Jadavpur University, Kolkata, West Bengal, 700032, India
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Accepted: 15 January 2019
Published online: 29 January 2019
The present work deals with homogeneous and isotropic FLRW model of the Universe having a system of non-interacting diffusive cosmic fluids with barotropic equation of state (constant or variable equation of state parameter). Due to diffusive nature of the cosmic fluids, the divergence of the energy momentum tensor is chosen to be proportional to the diffusive current. The thermodynamic stability analysis of individual fluids is done and the stability conditions are expressed as restrictions on the equation of state parameter.
© The Author(s), 2019