Cosmology of the de Sitter Horndeski models
General Relativity and Quantum Cosmology
2015-11-03 v1 Cosmology and Nongalactic Astrophysics
Abstract
Horndeski models with a de Sitter critical point for any kind of material content may provide a mechanism to alleviate the cosmological constant problem. We study the cosmological evolution of two classes of families - the linear models and the non-linear models with shift symmetry. We conclude that the latter models can deliver a background dynamics compatible with the latest observational data.
Keywords
Cite
@article{arxiv.1511.00655,
title = {Cosmology of the de Sitter Horndeski models},
author = {Nelson J. Nunes and Prado Martin-Moruno and Francisco S. N. Lobo},
journal= {arXiv preprint arXiv:1511.00655},
year = {2015}
}
Comments
6 pages, 2 figures. Contribution to the proceedings of "The Fourtheenth Marcel Grossmann Meeting on General Relativity", University of Rome "La Sapienza", Rome, July 12-18, 2015, based on a talk delivered at the DE1 parallel session