Evaporation and fate of covariant quantum black holes

Abstract

A growing number of phenomena and theoretical problems indicate that quantum gravity theory is necessary. In this paper, we investigate the evaporation of covariant quantum BHs for particles with different spins and compare the results with the Schwarzschild case. Our results show that the Hawking radiation and mass loss rate of covariant quantum BHs differ from those of Schwarzschild BHs and they depend on the spins of the emitted particles. Therefore, these results suggest that it may be insufficient to consider only BH evaporation in the massless scalar field case and may provide a possible way to test loop quantum gravity in the future.