Reheating via gravitational particle production in simple models of quintessence or $\Lambda$CDM inflation

TL;DR

This paper tests simple $ ext{Lambda}$CDM and quintessence inflation models against recent BICEP and Planck data, focusing on gravitational particle production during reheating to ensure compatibility with nucleosynthesis.

Contribution

It evaluates the viability of simple inflation models by matching observational data and analyzing reheating temperatures from gravitational particle production.

Findings

Models consistent with BICEP and Planck data

Reheating temperatures support nucleosynthesis

Gravitational particle production effectively reheats the universe

Abstract

We have tested some simple $\Lambda$CDM (the same test is also valid for quintessence) inflation models, imposing that they match with the recent observational data provided by the BICEP and Planck's team and leading to a reheating temperature, which is obtained via gravitational particle production after inflation, supporting the nucleosynthesis success.