Counting of Black Hole Microstates


The entropy of a black hole can be obtained by counting states in loop quantum gravity. The dominant term depends on the Immirzi parameter involved in the quantization and is proportional to the area of the horizon, while there is a logarithmic correction with coefficient -1/2.Comment: 5 pages, revtex4, 1 figure; prepared for special issue of Indian Journal of Physics in memory of Amal Kumar Raychaudhuri; section on temperature shifted to hep-th/060512

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