$k$-essence non-minimally coupled with Gauss-Bonnet invariant for inflation
General Relativity and Quantum Cosmology
2017-03-29 v2
Abstract
In this paper, we investigated inflationary solutions for a subclass of Horndeski models where a scalar field is non-minimally coupled with the Gauss-Bonnet invariant. Examples of canonical scalar field and -essence to support the early-time acceleration are considered. The formalism to calculate the perturbations in FRW universe and to derive the spectral index and the tensor-to-scalar ratio is furnished.
Keywords
Cite
@article{arxiv.1606.00711,
title = {$k$-essence non-minimally coupled with Gauss-Bonnet invariant for inflation},
author = {Ratbay Myrzakulov and Lorenzo Sebastiani},
journal= {arXiv preprint arXiv:1606.00711},
year = {2017}
}
Comments
final version, accepted in Symmetry 14 pages