Events

Date: 11 November 2025   Time: 14:00 - 15:30

Location: MB503

Title: de Sitter Universes

Abstract: In this talk I will discuss features of Quantum Field Theories in a fixed de Sitter background. I will present an exactly solvable model and show how to obtain all loops correlation functions of local operators. I will then discuss the existence of charged vacuum states in the theory and its relation to spontaneous symmetry breaking in de Sitter spacetimes.