Speaker
Federico Gasparotto
(JGU Mainz)
Description
We will discuss how methods developed in the context of perturbation theory can be applied to the computation of lattice correlation functions, in particular in the non-perturbative regime. The techniques we will consider are integration-by-parts identities and the method of differential equations, cast in the framework of twisted Co-Homology. We will report on calculations of correlation functions for phi^4 theory and lattices of small size, both in Euclidean and Minkowskian signature.
