Speaker
Description
TItle: Causal Dynamical Triangulations. From the infrared to the ultraviolet
Abstract: One of key questions of quantum gravity is whether it can be formulated as a non-perturbatively renormalizable quantum field theory valid up to arbitrarily large energy scale as predicted by the, so-called, asymptotic safety conjecture. Causal Dynamical Triangulations (CDT) is a lattice quantum field theory of gravity based on the formalism of Regge Calculus and Feynman path integrals. It is studied by numerical Monte Carlo simulations. In my talk I will briefly introduce the four-dimensional CDT and present its most important results, including the non-trivial phase structure and the dynamically emerging semiclassical universe. I will discuss how one can define the infrared and ultraviolet limits of CDT and thus provide evidence in favour of asymptotic safety.
