Speaker: Philippe Brax (Institut de Physique Théorique, Université Paris-Saclay)
Title: Memory and tail effects for interacting scalar fields
Abstract: Interactions and self-interactions of nearly massless scalar fields can be relevant to both dark matter and dark energy. Here we use the Schwinger-Keldysh approach to the effective field theory of a binary system coupled to a scalar field to analyse memory effects along hyperbolic orbits or tail effects and their consequences for the dynamics of the binary system.
Room: Sala de Reuniões e Seminários (2-8.3, 2nd Floor of Physics Building)