Thawing quintessence from the inflationary epoch to today
Abstract
Using the latest observational data we obtain a lower bound on the initial value of the quintessence field in thawing quintessence models of dark energy. For potentials of the form V(\phi) \phi^{\pm2} we find that the initial value |\phi_i|>7x10^{18}\gev. We then relate \phi_i to the duration of inflation by assuming that the initial value of the quintessence field is determined by quantum fluctuations of the quintessence field during inflation. From the lower bound on we obtain a lower bound on the number of e-foldings of inflation, namely, N>2x10^{11}. We obtain similar bounds for other power law potentials for which too we obtain |\phi_{i}|>O(M_{P}.
Keywords
Cite
@article{arxiv.1412.6915,
title = {Thawing quintessence from the inflationary epoch to today},
author = {Gaveshna Gupta and Raghavan Rangarajan and Anjan A. Sen},
journal= {arXiv preprint arXiv:1412.6915},
year = {2016}
}
Comments
8 pages, 5 figures; replaced some figures and expanded discussion to include general monomial potentials. Accepted for publication in Physical Review D