Quintessential inflation and cosmological seesaw Mechanism: reheating and observational constraints

TL;DR

This paper introduces a new quintessential inflation model based on Lorentzian distribution with a simple potential that aligns with observational data and reheating constraints, incorporating a cosmological seesaw mechanism for dark energy and inflation.

Contribution

The paper presents a novel inflationary model derived from Lorentzian distribution that unifies early and late universe acceleration within a simple potential framework.

Findings

Model agrees with recent cosmological observations.

Reheating constraints are satisfied.

Incorporates a cosmological seesaw mechanism for dark energy.

Abstract

Recently a new kind of quintessential inflation coming from the Lorentzian distribution has been introduced in [1,2]. The model leads to a very simple potential, which basically depends on two parameters, belonging to the class of $\alpha$-attractors and depicting correctly the early and late time accelerations of our universe. The potential emphasizes a {\it cosmological seesaw mechanism} (CSSM) that produces a large inflationary vacuum energy in one side of the potential and a very small value of dark energy on the right hand side of the potential. {Here we show that the model agrees with the recent observations and with the reheating constraints. Therefore the model gives a reasonable scenario beyond the standard $\Lambda$CDM that includes the inflationary epoch.}