The horizon quantum mechanics is an approach that was previously introduced in order to analyze the gravita- tional radius of spherically symmetric systems and compute the probability that a given quantum state is a black hole. In this work, we first extend the formalism to general space- times with asymptotic (ADM) mass and angular momentum. We then apply the extended horizon quantum mechanics to a harmonic model of rotating corpuscular black holes. We find that simple configurations of this model naturally suppress the appearance of the inner horizon and seem to disfavor extremal (macroscopic) geometries.
Horizon quantum mechanics of rotating black holes / Casadio, Roberto; Giugno, Andrea; Giusti, Andrea; Micu, Octavian. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - ELETTRONICO. - 77:5(2017), pp. 1-11. [10.1140/epjc/s10052-017-4882-x]
Horizon quantum mechanics of rotating black holes
CASADIO, ROBERTO;GIUSTI, ANDREA;
2017
Abstract
The horizon quantum mechanics is an approach that was previously introduced in order to analyze the gravita- tional radius of spherically symmetric systems and compute the probability that a given quantum state is a black hole. In this work, we first extend the formalism to general space- times with asymptotic (ADM) mass and angular momentum. We then apply the extended horizon quantum mechanics to a harmonic model of rotating corpuscular black holes. We find that simple configurations of this model naturally suppress the appearance of the inner horizon and seem to disfavor extremal (macroscopic) geometries.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.