Hawking radiation of charged rotating particle in Kerr-Newman spacetime

Abstract

We extend the method that Banerjee and Majhi studied Hawking radiation. Under the condition that the total energy, total charge and total angular momentum of spacetime are conservative, we discuss Hawking radiation of the charged rotating particle by the new defined Tortoise coordinate transformation. Taking the radiation particle reaction to the spacetime into consideration, we obtain the black hole radiation spectrum that satisfies the unitary principle of quantum mechanics. And it is shown that the contribution from ingoing wave is equal to the one from outgoing wave in the radiation spectrum chemical potential term caused by the charged rotating particle. It makes people have a new understanding to physical mechanism of Hawking radiation of the black hole.