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Quantum Spectrum of Stationary Axisymmetric Einstein--Maxwell Dilaton--Axion Black Hole |
| WANG Jin;JING Ji-Liang |
| Department of Physics and Institute of Physics, Hunan Normal University, Changsha 410081 |
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| Cite this article: |
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WANG Jin, JING Ji-Liang 2005 Chin. Phys. Lett. 22 2766-2768 |
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Abstract The horizon area spectrum of a stationary axisymmetric Einstein--Maxwell Dilaton--Axion (EMDA) black hole is studied by using Gour--Medved’s method. It is found that the quantized area operator can be expressed in terms of two quantum numbers, i.e. A=8πħ(1/2+n+l), where n and l are strictly non-negative integers and related respectively to the mass and angular momentum. The result shows that there is qualitatively a property difference between the quantum spectrum of the EMDA black hole which obtained from string theory and the one of the Kerr--Newman black hole which obtained from general relativity, although both they are characterized by mass, angular momentum and charge.
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04.70.-s
04.70.Dy
04.20.Cv
97.60.Lf
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Published: 01 November 2005
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| PACS: |
04.70.-s
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(Physics of black holes)
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04.70.Dy
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(Quantum aspects of black holes, evaporation, thermodynamics)
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04.20.Cv
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(Fundamental problems and general formalism)
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97.60.Lf
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(Black holes)
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