Gauss-Bonnet term corrections in scalar field cosmology
arXiv:2004.08065 · doi:10.1140/epjc/s10052-020-08718-w
Abstract
The influence of non-minimal coupling of a scalar field and the Gauss-Bonnet term on the inflationary stage of evolution of the universe is investigated in this paper. The main cosmological effects of such a coupling were considered. The deviations between Einstein-Gauss-Bonnet inflation and standard one based on Einstein gravity were determined. The corrections of a weak GB coupling preserving the type of the scalar field potential to standard inflationary models is considered as well.
18 pages