Asymptotic safety in quantum gravity: Renormalizability and beyond

2^nd International Conference on Astrophysics and Particle Physics

November 13-15, 2017 San Antonio, USA

Martin Reuter

University of Mainz, Germany

Scientific Tracks Abstracts: J Astrophys Aerospace Technol

Abstract :

In this talk a general introduction to the main ideas and achievements of the asymptotic safety approach to quantum gravity will be given. In particular the functional renormalization group for gravity is briefly reviewed. The asymptotic safety program aims at constructing a consistent quantum field theory of gravity and spacetime geometry which complies with a number of indispensable physical principles such as Hilbert space positivity and background independence in addition to nonperturbative renormalizability. We will discuss recent work on some of these requirements in a simplified two-dimensional setting where the tools of conformal field theory are available.

Biography :

Martin Reuter has worked at the European Center of Particle Physics CERN and the German DESY laboratory before becoming a Professor of Theoretical Physics at the University of Mainz in 1997.