105 citations · 349 across the 7 of their papers we have counts for
7 papers
Connections and geodesics in the space of metrics
Maximilian Demmel, Andreas Nink
We argue that the exponential relation is the most natural metric parametrization since it describes geodesics that follow from th…
A proper fixed functional for four-dimensional Quantum Einstein Gravity
Maximilian Demmel, Frank Saueressig, Omar Zanusso
Realizing a quantum theory for gravity based on Asymptotic Safety hinges on the existence of a non-Gaussian fixed point of the theory's renormalization group flow. In this work, we…
RG flows of Quantum Einstein Gravity in the linear-geometric approximation
Maximilian Demmel, Frank Saueressig, Omar Zanusso
We construct a novel Wetterich-type functional renormalization group equation for gravity which encodes the gravitational degrees of freedom in terms of gauge-invariant fluctuation…
RG flows of Quantum Einstein Gravity on maximally symmetric spaces
Maximilian Demmel, Frank Saueressig, Omar Zanusso
We use the Wetterich-equation to study the renormalization group flow of -gravity in a three-dimensional, conformally reduced setting. Building on the exact heat kernel for m…
Scheme dependence and universality in the functional renormalization group
Alessandro Codello, Maximilian Demmel, Omar Zanusso
We prove that the functional renormalization group flow equation admits a perturbative solution and show explicitly the scheme transformation that relates it to the standard scheme…
Fixed Functionals in Asymptotically Safe Gravity
Maximilian Demmel, Frank Saueressig, Omar Zanusso
We summarize the status of constructing fixed functionals within the f(R)-truncation of Quantum Einstein Gravity in three spacetime dimensions. Focusing on curvatures much larger t…
Fixed-Functionals of three-dimensional Quantum Einstein Gravity
Maximilian Demmel, Frank Saueressig, Omar Zanusso
We study the non-perturbative renormalization group flow of f(R)-gravity in three-dimensional Asymptotically Safe Quantum Einstein Gravity. Within the conformally reduced approxima…