Microscopic black holes as probes for quantum gravity

TL;DR

This paper explores how microscopic black holes could serve as experimental probes for quantum gravity, offering insights into quantum spacetime phenomena beyond current observational capabilities.

Contribution

It introduces the potential of microscopic black holes as model-independent tools to investigate quantum gravity effects in cosmology.

Findings

Black holes may reveal quantum spacetime properties

Microscopic black holes could be detectable through their effects

Potential role of black holes in cosmological models

Abstract

One of the main goals of contemporary theoretical physics is to find the quantum theory of gravity. There are various working hypotheses, mostly operating in the regime of high-energy physics well above the reach of particle accelerators. So far, strong experimental or observational evidence to guide the theory is missing. A possible consequence of quantum gravity and quantum spacetime that is often discussed is the vacuum dispersion effect. In this paper, we consider a different line of quantum space phenomenology, the behaviour of microscopic black holes. Even though their exact nature is unknown, some of their features are very model-independent, allowing us to draw conclusions about their role in the current cosmological models.