Black holes and phase-space noncommutativity
- 28 December 2009
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 80 (12), 124038
- https://doi.org/10.1103/physrevd.80.124038
Abstract
We use the solutions of the noncommutative Wheeler-DeWitt equation arising from a Kantowski-Sachs cosmological model to compute thermodynamic properties of the Schwarzschild black hole. We show that the noncommutativity in the momentum sector introduces a quadratic term in the potential function of the black hole minisuperspace model. This potential has a local minimum and thus the partition function can be computed by resorting to a saddle point evaluation in the neighborhood of the minimum. The thermodynamics of the black hole is derived and the corrections to the usual Hawking temperature and entropy exhibit a dependence on the momentum noncommutative parameter, . Moreover, we study the singularity in the noncommutative regime and show that in this case the wave function of the system vanishes in the neighborhood of .
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