Stationary vs. singular points in an accelerating FRW cosmology derived from six-dimensional Einstein-Gauss-Bonnet gravity
High Energy Physics - Theory
2008-11-26 v1 Astrophysics
General Relativity and Quantum Cosmology
Mathematical Physics
math.MP
Abstract
Six-dimensional Einstein-Gauss-Bonnet gravity (with a linear Gauss-Bonnet term) is investigated. This theory is inspired by basic features of results coming from string and M-theory. Dynamical compactification is carried out and it is seen that a four-dimensional accelerating FRW universe is recovered, when the two-dimensional internal space radius shrinks. A non-perturbative structure of the corresponding theory is identified which has either three or one stable fixed points, depending on the Gauss-Bonnet coupling being positive or negative. A much richer structure than in the case of the perturbative regime of the dynamical compactification recently studied by Andrew, Bolen, and Middleton is exhibited.
Keywords
Cite
@article{arxiv.hep-th/0611213,
title = {Stationary vs. singular points in an accelerating FRW cosmology derived from six-dimensional Einstein-Gauss-Bonnet gravity},
author = {E. Elizalde and A. N. Makarenko and V. V. Obukhov and K. E. Osetrin and A. E. Filippov},
journal= {arXiv preprint arXiv:hep-th/0611213},
year = {2008}
}
Comments
9 pages, 20 figures, accepted in PLB