Curvature driven acceleration : a utopia or a reality ?
Astrophysics
2009-11-24 v2
Abstract
The present work shows that a combination of nonlinear contribution from the Ricci curvature in Einstein field equations can drive a late time acceleration of expansion of the universe. The transit from the decelerated to the accelerated phase of expansion takes place smoothly without having to resort to a study of asymptotic behaviour. This result emphasizes the need for thorough and critical examination of models with nonlinear contribution from the curvature.
Cite
@article{arxiv.astro-ph/0505096,
title = {Curvature driven acceleration : a utopia or a reality ?},
author = {Sudipta Das and Narayan Banerjee and Naresh Dadhich},
journal= {arXiv preprint arXiv:astro-ph/0505096},
year = {2009}
}
Comments
8 pages, 4 figures