Unification models with reheating via primordial black holes

TL;DR

This paper explores how primordial black holes formed after inflation could reheat the universe, unifying inflation and dark matter under a single scalar field, and outlines conditions for standard Big Bang nucleosynthesis.

Contribution

It introduces a model where black hole evaporation reheats the universe, linking inflation, dark matter, and reheating in a unified framework.

Findings

Black hole evaporation can reheat the universe effectively.

Conditions for successful nucleosynthesis are identified.

Unification of inflation and dark matter is feasible with this mechanism.

Abstract

We study the possibility of reheating the universe through the evaporation of primordial black holes created at the end of inflation. This is shown to allow for the unification of inflation and dark matter under the dynamics of a single scalar field. We determine the necessary conditions to recover the standard Big Bang by the time of nucleosynthesis after reheating through black holes.