Correlation of Horizons and Black Hole Thermodynamics

Abstract

For black holes with more than one horizon, the existence of a global temperature is not fully understood. This can affect the thermodynamics of these black holes to be unclear. In this paper, using the method of quantum tunneling, we find a global temperature for asymptotically AdS_3 multi-horizon black holes appeared in three dimensional quasitopological gravities. We also find a global temperature for the asymptotically warped AdS3 black holes. In all of the cases the global temperature differs from the conventional Hawking temperature

11 pages