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2011

Viscous Little Rip Cosmology

Brevik, I., Elizalde, E., Nojiri, S. et al.

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Dark energy of phantom or quintessence nature with an equation of state parameter $w$ almost equal to -1 often leads the universe evolution to a finite-time future singularity.

An elegant solution to this problem has been recently proposed \cite{frampton11} under the form of the so-called Little Rip cosmology which appears to be a realistic alternative to the $\Lambda$CDM model.
A viscous Little Rip cosmology is here proposed.
Whereas generically bulk viscosity tends to promote the Big Rip, we find that there are a number of situations where this is not the case and where the formalism nicely adjusts itself to the Little Rip scenario.

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