Quantum Non-thermal Effect from the Space Time with an Internal Global Monopole

A novel direct derivation method for calculating Hawking radiation is presented based on Damour-Ruffini method in this paper, which takes into account a self-gravitational interaction from the black hole with an internal global monopole. It can be seen from the derivation equation that the radiation is not exactly thermal, because the derivation equation obeys conservation laws, and the non-thermal Hawking radiation can carry information from the black hole. So it may be used to explain the black hole information paradox, and the process satisfies the unitary theory.