2 papers
hep-th2021
Towards a Geometrization of Renormalization Group Histories in Asymptotic Safety
Renata Ferrero, Martin Reuter
Considering the scale dependent effective spacetimes implied by the functional renormalization group in d-dimensional Quantum Einstein Gravity, we discuss the representation of ent…
gr-qc2020
Dynamical diffeomorphisms
Renata Ferrero, Roberto Percacci
We construct a general effective dynamics for diffeomorphisms of spacetime, in a fixed external metric. Though related to familiar models of scalar fields as coordinates, our model…