$\beta$-function formalism for inflationary models with a non minimal coupling with gravity
High Energy Physics - Phenomenology
2016-09-27 v2 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
We discuss the introduction of a non minimal coupling between the inflaton and gravity in terms of the recently proposed -function formalism for inflation\cite{Binetruy:2014zya}. Via a field redefinition we reduce to the case of minimally coupled theories. The universal attractor at strong coupling has a simple explanation in terms of the new field. Generalizations are discussed and the possibility of evading the universal attractor is shown.
Keywords
Cite
@article{arxiv.1510.03691,
title = {$\beta$-function formalism for inflationary models with a non minimal coupling with gravity},
author = {Mauro Pieroni},
journal= {arXiv preprint arXiv:1510.03691},
year = {2016}
}