Planck stars: theory and phenomenology

Giusti, Andrea (2015) Planck stars: theory and phenomenology. [Laurea magistrale], Università di Bologna, Corso di Studio in Fisica [LM-DM270]
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General Relativity (GR) is one of the greatest scientific achievements of the 20th century along with quantum theory. Despite the elegance and the accordance with experimental tests, these two theories appear to be utterly incompatible at fundamental level. Black holes provide a perfect stage to point out these difficulties. Indeed, classical GR fails to describe Nature at small radii, because nothing prevents quantum mechanics from affecting the high curvature zone, and because classical GR becomes ill-defined at r = 0 anyway. Rovelli and Haggard have recently proposed a scenario where a negative quantum pressure at the Planck scales stops and reverts the gravitational collapse, leading to an effective “bounce” and explosion, thus resolving the central singularity. This scenario, called Black Hole Fireworks, has been proposed in a semiclassical framework. The purpose of this thesis is twofold: - Compute the bouncing time by means of a pure quantum computation based on Loop Quantum Gravity; - Extend the known theory to a more realistic scenario, in which the rotation is taken into account by means of the Newman-Janis Algorithm.

Tipologia del documento
Tesi di laurea (Laurea magistrale)
Autore della tesi
Giusti, Andrea
Relatore della tesi
Correlatore della tesi
Corso di studio
Curriculum A: Teorico generale
Ordinamento Cds
Parole chiave
Planck Star Black Hole Quantum Gravity
Data di discussione della Tesi
23 Ottobre 2015

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