We discuss general one and two-loops banana diagrams with arbitrary masses on the de
Sitter spacetime by using direct methods of dS quantum field theory in the dimensional …

A bstract Study of correlation functions in AdS/CFT and in-in correlators in de Sitter space
often requires the computation of Witten diagrams. Due to the complexity of evaluating radial …

We study Yang-Mills theory on four dimensional Anti-de Sitter space. The Dirichlet boundary
condition cannot exist at arbitrarily large radius because it would give rise to colored …

A bstract We study conformal field theory in d= 1 space-time dimensions. We derive a
dispersion relation for the 4-point correlation function of identical bosons and fermions, in …

This thesis is devoted to the study of phases of non-abelian gauge theories by means of
perturbation theory. In the first part, we use the ϵ-expansion to investigate the fate of gauge …

We discuss general one and two-loops banana diagrams with arbitrary masses on the anti
de Sitter spacetime by using direct methods of AdS quantum field theory in the dimensional …