Quintessential Inflation with Dynamical Higgs Generation as an Affine Gravity
Abstract
First, we propose a scale-invariant modified gravity interacting with a neutral scalar "inflaton" and a Higgs-like SU(2)xU(1) iso-doublet scalar field based on the formalism of non-Riemannian (metric-independent) spacetime volume-elements. This model describes in the physical Einstein frame a quintessential inflationary scenario driven by the "inflaton" together with gravity-inflaton assisted dynamical spontaneous SU(2)xU(1) symmetry breaking in the post-inflationary universe, whereas SU(2)xU(1) symmetry remains intact in the inflationary epoch. Next, we find the explicit representation of the latter quintessential inflationary model with a dynamical Higgs effect as an Eddington-type purely affine gravity.
Cite
@article{arxiv.2003.04723,
title = {Quintessential Inflation with Dynamical Higgs Generation as an Affine Gravity},
author = {David Benisty and Eduardo Guendelman and Emil Nissimov and Svetlana Pacheva},
journal= {arXiv preprint arXiv:2003.04723},
year = {2020}
}
Comments
17 pages, 1 figure; v.2 few clarifications and several new citations added, accepted for publication in "Symmetry", Special issue "Global and Local Scale Symmetry in Gravitation and Cosmology"; partial overlap with arXiv:2002.04110