Talk detail

Participant	Lopez-Monsalvo, Cesar S.
Institution	Instituto de Ciencias Nucleares, UNAM - Circuito Exterior s/n - Ciudad Universitaria - Mexico City - Mexico

Session	BH4	Accepted		Order	Time
Talk	Oral abstract	Title	Surface gravity of extremal dirty blackholes
Co-authors
Abstract	The thermodynamics of dirty (Maxwell-Dilaton) black holes have been extensively studied. It has served as a fertile ground to test ideas about temperature through various definitions of surface gravity (Hayward, Visser, etc). In this talk, we explore an alternative definition for the surface gravity of such a black hole. Motivated by the singularity structure in the interior of the event horizon, we use a holographic argument to remove the states of a disconnected region from the count on the horizon. Thus, we obtain a temperature which agrees with the standard results in the non-extremal regime, and which has a desirable behaviour around the extremal configurations.

Session	BH3	Accepted		Order	Time
Talk	Oral abstract	Title	Surface gravity of extremal dirty blackholes
Co-authors
Abstract	The thermodynamics of dirty (Maxwell-Dilaton) black holes have been extensively studied. It has served as a fertile ground to test ideas about temperature through various definitions of surface gravity (Hayward, Visser, etc). In this talk, we explore an alternative definition for the surface gravity of such a black hole. Motivated by the singularity structure in the interior of the event horizon, we use a holographic argument to remove the states of a disconnected region from the count on the horizon. Thus, we obtain a temperature which agrees with the standard results in the non-extremal regime, and which has a desirable behaviour around the extremal configurations.