**Black Hole formation in Planck era**

Dr. Yaser Tavakoli (University of Tehran)

Tuesday, 95/02/21 (May 10, 2016), 15:00

seminar room 1

**Abstract**

For a spherically symmetric distribution of (homogeneous) matter, loop quantum gravity leads to a modification of evolution equation of the gravitational collapse. This gives rise to resolution of the classical singularity that forms at the collapse end-state. In this talk, by considering a spherically symmetric model for gravitational collapse, whose classical final state is a Schwarzschild black hole, we investigate how quantum gravity modifies the exterior black hole geometry in Planck era. We further obtain a threshold mass, which is comparable with the Planck mass, for formation of a very small non-evaporating (quantum) black hole.