HET Journal club: Kostas Sfetsos

Speaker: Kostas Sfetsos

Title: Exact RG flows and the c-theorem

Abstract: We provide explicit Lagrangian realizations of  smooth Renormalization Group  flows driven
by current bilinears of WZW model Conformal Field Theories. 
We show how to compute the exact beta-function and operator anomalous dimensions to all orders in the deformation parameters. We provide the exact C-function obeying Zamolodchikov's c-theorem -- the first such example in literature. Our techniques incorporate leading order perturbative results, non-trivial symmetries in the parametric space of these theories as well as gravitational methods.