Statistical entropy of a Schwarzschild black hole |
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| Authors: | Moorad Alexanian |
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| Institution: | (1) Department of Physics and Astronomy, Southern Illinois University at Carbondale, 62901 Carbondale, Illinois;(2) Present address: Centro de Investigación y de Estudios Avanzados, 07000 Mexico, D.F., Mexico |
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| Abstract: | A model describing the internal microstates of particles is used to calculate the statistical entropy of a Schwarzschild black hole. The state of the system is described by a nonextensive entropy function which is superadditive and so fails to be concave. A strict maximum of the entropy does not exist; nonetheless, the entropy increases on merging two such systems. |
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| Keywords: | Black-hole thermodynamics concavity nonextensivity superadditivity |
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