Evolution of Primordial Black Holes in Loop Quantum Gravity

TL;DR

This paper investigates how primordial black holes evolve within loop quantum gravity, finding that radiation accretion does not influence their evolution despite potentially higher formation rates in the early universe.

Contribution

It introduces a study of primordial black hole evolution specifically in the context of loop quantum gravity, highlighting differences from classical theories.

Findings

Radiation accretion does not affect black hole evolution in loop quantum gravity.

More primordial black holes may form in the early universe compared to classical theories.

The scale factor and energy density are calculated for different cosmic eras.

Abstract

In this work, we study the evolution of Primordial Black Holes within the context of Loop Quantum Gravity. First we calculate the scale factor and energy density of the universe for different cosmic era and then taking these as inputs we study evolution of primordial black holes. From our estimation it is found that accretion of radiation does not affect evolution of primordial black holes in loop quantum gravity even though a larger number of primordial black holes may form in early universe in comparison with Einstein's or scalar-tensor theories.