Dark Energy Fluid with Time-Dependent, Inhomogeneous Equation of State
General Relativity and Quantum Cosmology
2008-11-26 v1
Abstract
The four-dimensional Friedman flat universe, filled with an ideal fluid with a linear (oscillating) inhomogeneous equation of state (EoS) depending on time, is studied. The equations of motion are solved. It is shown that in some cases there appears a quasi-periodic universe, which repeats the cycles of phantom-type space acceleration. The appearance of future singularities resulting from various choices for the input parameters is discussed.
Keywords
Cite
@article{arxiv.gr-qc/0702089,
title = {Dark Energy Fluid with Time-Dependent, Inhomogeneous Equation of State},
author = {I. Brevik and O. G. Gorbunova and A. V. Timoshkin},
journal= {arXiv preprint arXiv:gr-qc/0702089},
year = {2008}
}
Comments
9 pages pdf, 4 figures. To appear in European Physical Journal C