Microcanonical algorithm of Kerr-Newman black holes

Statistical mechanics of a dilute gas of Kerr-Newman primordial black holes is described in the microcanonical ensemble approach. The most probable microcanonical distribution turns out to be the configuration in which most of the mass, most of the charge and almost all of the angular momentum of the whole gas are associated with a single black hole. The microcanonical temperature is then reduced to the Hawking temperature of the most massive black hole in the gas.