Dark energy from backreaction
Astrophysics
2011-05-05 v3 General Relativity and Quantum Cosmology
Abstract
We consider the effect of inhomogeneities on the expansion of the Einstein-de Sitter universe. We find that the backreaction of linear scalar metric perturbations results in apparent dark energy with a mixture of equations of state between 0 and -4/3. We discuss the possibility that backreaction could account for present-day acceleration.
Keywords
Cite
@article{arxiv.astro-ph/0311257,
title = {Dark energy from backreaction},
author = {Syksy Rasanen},
journal= {arXiv preprint arXiv:astro-ph/0311257},
year = {2011}
}
Comments
21 pages, LaTeX2e, JCAP-style. v2: Added references, corrected a typo, minor clarifications. v3: Version accepted for publication. Added references and clarifications