Work

Small Black/White Hole Stability and Dark Matter

Year: 2018

Type: article

Abstract: We show that the expected lifetime of white holes formed as remnants of evaporated black holes is consistent with their production at reheating. We give a simple quantum description of these objects and argue that a quantum superposition of black and white holes with large interiors is stable, because it is protected by the existence of a minimal eigenvalue of the area, predicted by Loop Quantum Gravity. These two results support the hypothesis that a component of dark matter could be formed by small black hole remnants.

Source: Universe

DOI: 10.3390/universe4110127

Authors: Carlo Rovelli, Francesca Vidotto

Institutions: Centre National de la Recherche Scientifique, Université de Toulon, Aix-Marseille Université, Centre de Physique Théorique, University of the Basque Country

Language: English

Topic: Dark Matter and Cosmic Phenomena

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,930

Funders: Eusko Jaurlaritza, Ministerio de Economía y Competitividad, Euskal Herriko Unibertsitatea, Agencia Estatal de Investigación