Dynamical Dark Energy and Spontaneously Generated Gravity
General Relativity and Quantum Cosmology
2015-06-04 v1 Cosmology and Nongalactic Astrophysics
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We study the cosmological evolution of an induced gravity model with a scale symmetry breaking potential for the scalar field. The radiation to matter transition, following inflation and reheating, influences the dynamics of such a field through its non minimal coupling. We illustrate how, under certain conditions on the potential, such a dynamics can lead to a suitable amount of dark energy explaining the present accelerated expansion.
Cite
@article{arxiv.1204.2625,
title = {Dynamical Dark Energy and Spontaneously Generated Gravity},
author = {Alexander Y. Kamenshchik and Alessandro Tronconi and Giovanni Venturi},
journal= {arXiv preprint arXiv:1204.2625},
year = {2015}
}
Comments
14 pages, 3 figures