Viscous dark energy and phantom evolution

By M. Cataldo, N. Cruz, S. Lepe. 2005

142 citations recorded by the source corpus.

Abstract In order to study if the bulk viscosity may induce a big rip singularity on the flat FRW cosmologies, we investigate dissipative processes in the universe within the framework of the standard Eckart theory of relativistic irreversible thermodynamics, and in the full causal Israel–Stewart–Hiscock theory. We have found cosmological solutions which exhibit, under certain constraints, a big rip singularity. We show that the negative pressure generated by the bulk viscosity cannot avoid that the dark energy of the universe to be phantom energy.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/b2393e13d690925c4b06b24e178716627530f361

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In Astronomy and Astrophysics

In Nuclear and High Energy Physics

In Statistical and Nonlinear Physics

Citations in the corpus

Bulk viscosity driving the acceleration of the Universe (2005, result): “Applications of viscous fluid concerning the phantom models have been made in reference [ 28 ].”
Viscous Cosmology for Early- and Late-Time Universe (2017, background): “The behavior of a viscous universe in its final stages has been discussed in [86, 87] and in [82, 92].”