4+1 dimensional homogeneous anisotropic string cosmological models
High Energy Physics - Theory
2012-03-27 v2 General Relativity and Quantum Cosmology
Abstract
We present exact solutions of string cosmological models characterized by five dimensional metrics (with four-dimensional real Lie groups as isometry groups), space independent dilaton and vanishing torsion. As an example we consider VII 0 \oplus R model and show that it is equivalent to the (4 +1)-dimensional cosmological model coupled to perfect fluid with negative deceleration parameters (accelerating universe).
Cite
@article{arxiv.1106.1795,
title = {4+1 dimensional homogeneous anisotropic string cosmological models},
author = {B. Mojaveri and A. Rezaei-Aghdam},
journal= {arXiv preprint arXiv:1106.1795},
year = {2012}
}
Comments
31, 1 table; section 5 is added