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Interacting Viscous Dark Energy in Bianchi Type-III Universe

In this paper we study the evolution of the equation of state of viscous dark energy in the scope of Bianchi type III space-time. We consider the case when the dark energy is minimally coupled to the perfect fluid as well as direct interaction with it. The viscosity and the interaction between the two fluids are parameterized by constants $ζ_{0}$ and $σ$ respectively. We have made a detailed investigation on the cosmological implications of this parametrization. To differentiate between different dark energy models, we have performed a geometrical diagnostic by using the statefinder pair $\{s, r\}$.

preprint2014arXivOpen access
Hassan Amirhashchi
astro-ph.CO
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Hassan Amirhashchi

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