Remarks on some vacuum solutions of scalar-tensor cosmological models
High Energy Physics - Theory
2015-06-26 v1
Abstract
We present a class of exact vacuum solutions corresponding to de Sitter and warm inflation models in the framework of scalar-tensor cosmologies. We show that in both cases the field equations reduce to planar dynamical systems with constraints. Then, we carry out a qualitative analysis of the models by examining the phase diagrams of the solutions near the equilibrium points.
Keywords
Cite
@article{arxiv.hep-th/0312124,
title = {Remarks on some vacuum solutions of scalar-tensor cosmological models},
author = {V. B. Bezerra and C. Romero and G. Grebot and M. E. X. Guimaraes and L. P. Colatto},
journal= {arXiv preprint arXiv:hep-th/0312124},
year = {2015}
}
Comments
12 pages, 4 figures. To be published in the Brazilian Journal of Physics