Generalized Uncertainty Principle and the Quantum Entropy of Rotating Black Hole

The entropy of rotating Kerr--Newman--Kasuya black hole due to massive
charged fields (bosons and fermions) is calculated by using the new equation of state density motivated by the generalized uncertainty relation. The result shows the entropy does not depend on the mass and the charge but the parameter λ, the area A and the spin of the fields. Moreover, an improved approximation is provided to calculate the scalar entropy.