Dynamically induced Planck scale and inflation in the Palatini formulation
General Relativity and Quantum Cosmology
2020-11-20 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We study non-minimal Coleman-Weinberg inflation in the Palatini formulation of gravity in the presence of an term. The Planck scale is dynamically generated by the vacuum expectation value of the inflaton via its non-minimal coupling to the curvature scalar . We show that the addition of the term in Palatini gravity makes non-minimal Coleman-Weinberg inflation again compatible with observational data.
Keywords
Cite
@article{arxiv.2006.09124,
title = {Dynamically induced Planck scale and inflation in the Palatini formulation},
author = {Ioannis D. Gialamas and Alexandros Karam and Antonio Racioppi},
journal= {arXiv preprint arXiv:2006.09124},
year = {2020}
}
Comments
section 4 extended, references added