Raffaele D’Agnolo - 2/3 Beyond-the-Standard-Model meets Cosmological Correlators
Institut des Hautes Etudes Scientifiques (IHES)
The lecture begins with a review of perturbation theory in quantum field theory applied to cosmology, where correlation functions are calculated by separating the action into quadratic and interaction components. This approach treats interactions as derivatives acting on a Gaussian path integral, re …