Reconstruction of GR cosmological solutions in modified gravity theories
General Relativity and Quantum Cosmology
2019-07-17 v1
Abstract
We study the special class of the exact solutions in cosmological models based on the Generalized Scalar-Tensor Gravity with non-minimal coupling of a scalar field to the Ricci scalar and to the Gauss-Bonnet scalar in 4D Friedmann universe corresponding to similar ones in GR. The parameters of cosmological perturbations in such models correspond to the case of Einstein gravity with a high precision. As the example of proposed approach, we obtain the exact solutions for the power-law and exponential power-law inflation.
Keywords
Cite
@article{arxiv.1903.03974,
title = {Reconstruction of GR cosmological solutions in modified gravity theories},
author = {Igor V. Fomin and Sergey V. Chervon},
journal= {arXiv preprint arXiv:1903.03974},
year = {2019}
}
Comments
4 figures