BF theory explanation of the entropy for nonrotating isolated horizons
In this paper, the isolated horizons (IHs) with rotation are considered. It is shown that the symplectic form is the same as that in the nonrotating case. As a result, the boundary degrees of freedom can be also described by an SO(1, 1) BF theory. The entropy of the rotating IH satisfies the Bekenstein Hawking area law with the same Barbero Immirzi parameter.