Lundi 16 novembre, 14 H. Salle de séminaire, 3ème étage. Bat. IIIr1-B4

Part of the string theory revolution of the 1980’s was the development of conformal field theory. While its applicability as a theory of everything is still unclear, it led to solutions of models of conduction electrons interacting with magnetic impurities that predict remarkable behavior. A gated semi-conductor device was recently tailored to finally provide an indisputable experimental realization of this theory. I will give a non-technical review of both theory and experiments.