Ultraviolet Phenomena in AdS Self-interacting Quantum Field Theory

par Prof. Emil Akhmedov (ITEP Moscou)

mardi 28 janv. 2020, 16:45 → 17:45 Europe/Paris

Amphithéâtre Léon Motchane (IHES)

We study the one-loop corrections to correlation functions in quantum field theories in the Anti de Sitter space-time. Our calculation shows the existence of non-local counterterms which however respect the AdS isometry. Our arguments are general and applicable to general non-conformal AdS field theories. We also explain why calculations in Euclidean and Lorentzian signatures should differ even at the leading order in non globaly hyperbolic manifolds.