Stability of de Sitter Solutions in Non-local Cosmological Models
General Relativity and Quantum Cosmology
2019-10-30 v1 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Mathematical Physics
math.MP
Abstract
A non-local gravity model, which includes a function , where is the d'Alembert operator, is considered. For the model with an exponential de Sitter solutions are explored, without any restrictions on the parameters. Using Hubble-normalized variables, the stability of the de Sitter solutions is investigated, with respect to perturbations in the Bianchi I metric, in the case of zero cosmological constant, and sufficient conditions for stability are obtained.
Keywords
Cite
@article{arxiv.1202.0178,
title = {Stability of de Sitter Solutions in Non-local Cosmological Models},
author = {E. Elizalde and E. O. Pozdeeva and S. Yu. Vernov},
journal= {arXiv preprint arXiv:1202.0178},
year = {2019}
}
Comments
10 pages, has been published in the proceedings of the XXth International Workshop on High Energy Physics and Quantum Field Theory (QFTHEP'2011), http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=138