Trace anomaly and evaporation of spherical black holes

Abstract

The evaporation of four-dimensional spherically symmetric black holes is presented in the framework of quantum field theory in curved spacetimes and semiclassical gravity. It is discussed how the evaporation process can be sourced by the presence of the trace anomaly of a massless, conformally coupled scalar field outside the apparent horizon of the black hole.

14 pages, 3 figure. Contribution to the Proceedings of the Sixteenth Marcel Grossmann Meeting (MG16), July 5-10 (2021). Minor corrections added with respect to the submitted proceeding