Brian P. Dolan JHEP02(2005)008 doi:10.1088/1126-6708/2005/02/008
Brian P. Dolan1
Show affiliationsModeling the event horizon of a black hole by a fuzzy sphere leads us to modify some suggestions in the literature concerning black hole mass spectra. We 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. Although the event horizon becomes a commutative sphere in the classical limit a vestige of the quantum theory still persists in that the event horizon stereographically projects onto the non-commutative plane. We also suggest how the classical bounds on extremal black holes might be modified in the quantum theory.
04.70.Dy Quantum aspects of black holes, evaporation, thermodynamics
Issue 02 (February 2005)
Received 15 October 2004, accepted for publication 2 February 2005
Published 15 February 2005
Brian P. Dolan JHEP02(2005)008
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