Inhomogeneous cosmologies with Q-matter and varying $\Lambda$
General Relativity and Quantum Cosmology
2009-10-31 v2 Astrophysics
Abstract
Starting from the inhomogeneous shear--free Nariai metric we show, by solving the Einstein--Klein--Gordon field equations, how a self--interacting scalar field plus a material fluid, a variable cosmological term and a heat flux can drive the universe to its currently observed state of homogeneous accelerated expansion. A quintessence scenario where power-law inflation takes place for a string-motivated potential in the late--time dominated field regime is proposed.
Cite
@article{arxiv.gr-qc/9906125,
title = {Inhomogeneous cosmologies with Q-matter and varying $\Lambda$},
author = {Luis P. Chimento and Alejandro S. Jakubi and Diego Pavon},
journal= {arXiv preprint arXiv:gr-qc/9906125},
year = {2009}
}
Comments
11 pages, Revtex. To be published in Physical Review D