Oscillating Universe from inhomogeneous EoS and coupled dark energy
High Energy Physics - Theory
2014-11-18 v2 Cosmology and Nongalactic Astrophysics
Abstract
An occurrence of an oscillating Universe is showed using an inhomogeneous equation of state for dark energy fluid. The Hubble parameter described presents a periodic behavior such that early and late time acceleration are unified under the same mechanism. Also, it is considered a coupling between dark energy fluid, with homogeneous and constant EoS, and matter, that gives a periodic Universe too. The possible phantom phases and future singularities are studied in the oscillating Universe under discussion. The equivalent scalar-tensor representation for the same oscillating Universe is presented too.
Cite
@article{arxiv.0804.4586,
title = {Oscillating Universe from inhomogeneous EoS and coupled dark energy},
author = {Diego Sáez-Gómez},
journal= {arXiv preprint arXiv:0804.4586},
year = {2014}
}
Comments
8 pages, 2 figures; added references