Generalization of cosmological attractor approach to Einstein-Gauss-Bonnet gravity
General Relativity and Quantum Cosmology
2020-07-29 v2 Cosmology and Nongalactic Astrophysics
Abstract
We construct models with the Gauss-Bonnet term multiplied to a function of the scalar field leading to inflationary scenario. The consideration is related with the slow-roll approximation. The cosmological attractor approach gives the spectral index of scalar perturbations which is in a good agreement with modern observation and allows variability for tensor-to-scalar ratio. We reconstruct models with variability of parameters which allow to reproduce cosmological attractor predictions for inflationary parameters in the leading order of approximation in the Einstein-Gauss-Bonnet gravity.
Keywords
Cite
@article{arxiv.2005.10133,
title = {Generalization of cosmological attractor approach to Einstein-Gauss-Bonnet gravity},
author = {E. O. Pozdeeva},
journal= {arXiv preprint arXiv:2005.10133},
year = {2020}
}