Quantum Black Holes: the Event Horizon as a Fuzzy Sphere

Dolan, Brian P. (2005) Quantum Black Holes: the Event Horizon as a Fuzzy Sphere. Journal of High Energy Physics, 0502 (008). pp. 1-14. ISSN 1126-6708

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Modeling the event horizon of a black hole by a fuzzy sphere it is shown that in the classical limit, for large astrophysical black-holes, the event horizon looks locally like a non-commutative plane with non-commutative parameter dictated by the Planck length. Some suggestions in the literature concerning black hole mass spectra are used to derive a formula for the mass spectrum of quantum black holes in terms of four integers which define the area, angular momentum, electric and magnetic charge of the black hole. We also suggest how the classical bounds on extremal black holes might be modified in the quantum theory.

Item Type: Article
Keywords: Models of Quantum Gravity; Non-Commutative Geometry;
Academic Unit: Faculty of Science and Engineering > Experimental Physics
Item ID: 240
Identification Number: JHEP02(2005)008
Depositing User: Dr. Brian Dolan
Date Deposited: 29 Aug 2005
Journal or Publication Title: Journal of High Energy Physics
Publisher: Institute of Physics
Refereed: Yes

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