Speaker
Martin S. Sloth
Description
I will discuss the requirements of a successful simultaneous solution to the Hubble and the S8 tension; why it requires new dark physics at the eV scale, and why New Early Dark Energy (NEDE) is a particularly simple and minimalistic framework for such solutions. I will then explain why this class of successful solutions to the tensions implies a more blue initial spectrum of primordial curvature perturbations favouring the simplest curvaton model over the Starobinsky inflation model. I will also discuss how this can be tested by future stronger constraints or measurements of local non-gaussiandity and the tensor-to-scalar ratio.
