Unification of Inflation and Dark Energy: Quintessential Inflation from Lorentzian Slow Roll

From the assumption that the slow roll parameter ϵ has a Lorentzian form as a function of the e-folds number N, a successful model of a quintessential inflation is obtained, as succinctly studied in \cite{Benisty:2020xqm}. 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 ϵ 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.

Based on: https://arxiv.org/abs/2006.04129

The talk will be given on Zoom:

We will meet about 30 minutes before the official start time for virtual mingling and informal chat