Theoriekolloquium

June 24, 2010 at 3:30 p.m. in Newton-Raum, Staudinger Weg 9, 01-122Prof. Dr. P.G.J. van Dongen

Institut für Physik, KOMET 7

peter.vandongen@uni-mainz.de

Jun.-Prof. Dr. J. Marino

Institut für Physik, KOMET 7

jamarino@uni-mainz.de

Prof. Dr. Jan Ambjorn (Niels Bohr Institut, Kopenhagen)

In the colloquium I will propose a non-perturbative definition of quantum gravity, using the lattice to provide a short distance cut-off. The lattice field theory can be simulated on the computer, and I will show how a macroscopic universe seemingly emerges from the mundane field theory. I will also show how in principle to connect to the renormalization group approach. Like this latter approach, the assumption underlying the lattice model is that of asymptotic safety.