title: Black hole entropy and isolated horizons thermodynamics.
abstract: We present a statistical mechanical calculation of the thermodynamical properties of (nonrotating) isolated horizons. The introduction of the Planck scale allows for the definition of a universal horizon temperature (independent of the mass of the black hole) and a well-defined notion of energy (as measured by suitable local observers) proportional to the horizon area in Planck units. The microcanonical and canonical ensembles associated with the system are introduced. Black hole entropy and other thermodynamical quantities can be consistently computed in both ensembles and results are in agreement with Hawking's semiclassical analysis for all values of the Immirzi parameter.
authors.affiliation: Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, 700064 Kolkata, India.
authors.forename: Amit
authors.initials: A
authors.lastname: Ghosh
authors.forename: Alejandro
authors.initials: A
authors.lastname: Perez