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Universe 2018, 4(11), 127;

Small Black/White Hole Stability and Dark Matter

Centre di Physique Théorique, Aix-Marseille Université, Université de Toulon, CNRS, F-13288 Marseille, France
Departamento de Física Teórica, University of the Basque Country UPV/EHU, E-48940 Leioa, Spain
Author to whom correspondence should be addressed.
Received: 3 October 2018 / Revised: 9 November 2018 / Accepted: 12 November 2018 / Published: 17 November 2018
PDF [762 KB, uploaded 19 November 2018]


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. View Full-Text
Keywords: dark matter; remnants; white holes; loop quantum gravity dark matter; remnants; white holes; loop quantum gravity

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Rovelli, C.; Vidotto, F. Small Black/White Hole Stability and Dark Matter. Universe 2018, 4, 127.

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