A 5D non compact and non Ricci flat Kaluza-Klein Cosmology
General Relativity and Quantum Cosmology
2009-05-03 v3
Abstract
A model universe is proposed in the framework of 5-dimensional noncompact Kaluza-Klein cosmology which is not Ricci flat. The 4D part as the Robertson-Walker metric is coupled to conventional perfect fluid, and its extra-dimensional part is coupled to a dark pressure through a scalar field. It is shown that neither early inflation nor current acceleration of the 4D universe would happen if the non-vacuum states of the scalar field would contribute to 4D cosmology.
Keywords
Cite
@article{arxiv.0708.3835,
title = {A 5D non compact and non Ricci flat Kaluza-Klein Cosmology},
author = {F. Darabi},
journal= {arXiv preprint arXiv:0708.3835},
year = {2009}
}
Comments
13 pages, major revision, published online in GRG