Inhomogeneous viscous fluids for inflation
General Relativity and Quantum Cosmology
2015-09-21 v2
Abstract
In this paper, we investigate inhomogeneous viscous fluid cosmology for inflation. Several toy models are presented in the attempt to analyze how inflation can be realized according with cosmological data by making use of an inhomogeneous EoS parameter for the fluid and/or by introducing a viscosity to have a graceful exit from inflation. The results will be compared with the ones of scalar field representation and discussed. We will pay attention on the possibility to recover the reheating and therefore the Friedmann universe.
Keywords
Cite
@article{arxiv.1410.3573,
title = {Inhomogeneous viscous fluids for inflation},
author = {Ratbay Myrzakulov and Lorenzo Sebastiani},
journal= {arXiv preprint arXiv:1410.3573},
year = {2015}
}
Comments
14 pages, final version, accepted in Astrophys. Space Sci