Quintessential inflation from Lorentzian slow roll
Abstract
From the assumption that the slow-roll parameter ɛ has a Lorentzian form as a function of the e-fold number N, a successful model of a quintessential inflation is obtained, as succinctly studied in [1]. The form corresponds to the vacuum energy both in the inflationary and in the dark-energy epochs and satisfies the condition to climb from small values of ɛ to 1 at the end of the inflationary epoch. We find the corresponding scalar quintessential inflationary potential with two flat regions. Moreover, a reheating mechanism is suggested with numerical estimation for the homogeneous evolution of the universe. The suggested mechanism is consistent with the BBN bound.
- Publication:
-
European Physical Journal C
- Pub Date:
- June 2020
- DOI:
- 10.1140/epjc/s10052-020-8147-8
- arXiv:
- arXiv:2006.04129
- Bibcode:
- 2020EPJC...80..577B
- Keywords:
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- Astrophysics - Cosmology and Nongalactic Astrophysics;
- General Relativity and Quantum Cosmology;
- High Energy Physics - Theory
- E-Print:
- 9 pages. arXiv admin note: substantial text overlap with arXiv:2004.00339