Primordial Black Hole Formation from Inflaton

TL;DR

This paper explores how primordial black holes could form from inflaton dynamics influenced by a small, evolving cosmological term linked to a scalar field, connecting black hole properties with early universe energy transfer.

Contribution

It introduces a model where a dynamic cosmological term affects primordial black hole formation, integrating inflaton energy transfer with black hole properties.

Findings

Black hole properties depend on the scalar field-driven cosmological term.

The model links inflaton energy transfer to black hole formation mechanisms.

Charged and uncharged black holes are analyzed within this framework.

Abstract

Measurements of the distances to SNe Ia have produced strong evidence that the Universe is really accelarating, implying the existence of a nearly uniform component of dark energy with the simplest explanation as a cosmological constant. In this paper a small changing cosmological term is proposed, which is a function of a slow-rolling scalar field, by which the de Sitter primordial black holes' properties, for both charged and uncharged cases, are carefully examined and the relationship between the black hole formation and the energy transfer of the inflaton within this cosmological term is eluciated