Black hole entropy in loop quantum gravity

4 pags., 2 figs. -- Loops 11: Non-Perturbative / Background Independent Quantum Gravity 23–28 May 2011, Madrid, SpainWe discuss the recent progress on black hole entropy in loop quantum gravity, focusing in particular on the recently discovered discretization effect for microscopic black holes. Powerful analytical techniques have been developed to perform the exact computation of entropy. A statistical analysis of the structures responsible for this effect shows its progressive damping and eventual disappearance as one increases the considered horizon area.This work was partially supported by the Spanish MICINN grants FIS2009-11893, FIS2008- 06078-C03-02, FIS2008-01980, ESP2007-66542-C04-01, AYA 2009-14027-C05-01, the NSF grants PHY-0854743 and PHY-0968871, and the Eberly research funds of Penn State