Speaker
Description
Supersymmetric field theories represent an invaluable theoretical laboratory for the exploration of non-perturbative dynamics and their geometric realization in string theory has proven to be a very effective tool to understand them, allowing us to construct and study in detail the properties of strongly-coupled theories even when they lack a lagrangian description. In this talk I will present a new method to engineer four dimensional theories with eight supercharges from D3 branes probing non-perturbative Type IIB (F-theory) backgrounds. This allows us to construct many new N=2 theories, including N=3 models and all superconformal theories with one-dimensional Coulomb branch. Furthermore, by exploiting this construction we find a connection between these 4d theories and superconformal theories in six dimensions which proves crucial to understand their moduli space of vacua.