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arXiv · gr-qc/9608031

Semiclassical Black Hole States and Entropy

T. Brotz·C. Kiefer
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Abstract

We discuss semiclassical states in quantum gravity corresponding to Schwarzschild as well as Reissner Nordström black holes. We show that reduced quantisation of these models is equivalent to Wheeler-DeWitt quantisation with a particular factor ordering. We then demonstrate how the entropy of black holes can be consistently calculated from these states. While this leads to the Bekenstein-Hawking entropy in the Schwarzschild and non-extreme Reissner-Nordström cases, the entropy for the extreme Reissner-Nordström case turns out to be zero.

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T. Brotz, C. Kiefer. 1997-01-16. Semiclassical Black Hole States and Entropy. https://doi.org/10.1103/physrevd.55.2186

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