EPFL Lectures on Conformal Field Theory in D>= 3 Dimensions

This is a writeup of lectures given at the EPFL Lausanne in the fall of 2012. The topics covered: physical foundations of conformal symmetry, conformal kinematics, radial quantization and the OPE, and a very basic introduction to conformal bootstrap.Comment: 68 pages; v2 - misprints correcte

Magnetostatic-field screening induced by small black holes

We find within the framework of quantum electrodynamics that there exists the screening effect of static magnetic field that is induced by evaporating black holes.Comment: version to be published in Nuclear Physics