174 citations · 676 across the 15 of their papers we have counts for
5 papers · 1 filter
Non-perturbative thermal flows and resummations
Daniel F. Litim, Jan M. Pawlowski
We construct a functional renormalisation group for thermal fluctuations. Thermal resummations are naturally built in, and the infrared problem of thermal fluctuations is well unde…
Fixed points of quantum gravity in higher dimensions
Peter Fischer, Daniel F. Litim
We study quantum gravity in more than four dimensions by means of an exact functional flow. A non-trivial ultraviolet fixed point is found in the Einstein-Hilbert theory. It is sho…
On fixed points of quantum gravity
Daniel F. Litim
We study the short distance behaviour of euclidean quantum gravity in the light of Weinberg's asymptotic safety scenario. Implications of a non-trivial ultraviolet fixed point are…
Convexity of the effective action from functional flows
Daniel F. Litim, Jan M. Pawlowski, Lautaro Vergara
We show that convexity of the effective action follows from its functional flow equation. Our analysis is based on a new, spectral representation. The results are relevant for the…
Fixed points of quantum gravity in extra dimensions
Peter Fischer, Daniel F. Litim
We study quantum gravity in more than four dimensions with renormalisation group methods. We find a non-trivial ultraviolet fixed point in the Einstein-Hilbert action. The fixed po…