Quantum entropy of the Kerr black hole arising from gravitational perturbation - art. no. 064015

The quantum entropy of the Kerr black hole arising from gravitational pertu rbation is investigated by using the Null tetrad and 't Hooft's brick-wall model. It is shown that the effect of the graviton's spin on the subleading correction is dependent on the square of the spins and the angular momentu m per unit mass of the black hole, and the contribution of the logarithmic term to the entropy will be positive, zero, and negative for different valu e of a/r(+).