Seminarium "High Energy, Cosmology and Astro-particle Physics (HECA)"

Over the past decades, the asymptotic safety scenario has matured into a viable contender for a consistent theory of quantum gravity. The scenario is based on a non-perturbative quantisation via an interacting UV fixed point of the renormalisation group flow. The existence of the UV fixed point has been confirmed in increasingly elaborate truncations. These results open the door to working out observable consequences of the theory, for example, graviton-mediated scattering, black hole solutions, and constraints on low-energy matter couplings. I will give a detailed introduction to the topic and present some recent advances in the field, in particular, in the area of computations on a Lorentzian background and the connection to (beyond) Standard Model physics.