3 papers
gr-qc2026
Starobinsky-inflation in asymptotically safe shift-symmetric scalar-tensor theory
Benjamin Koch, Cristobal Laporte, Frank Saueressig
We investigate the constraining power of scalaron-driven inflation on asymptotically safe scalar-tensor theories. Starting from a Horndeski-type theory and applying a renormalizati…
gr-qc2026
Equivalence of scalar-tensor theories and scale-dependent gravity
Philipp Neckam, Christian Käding, Benjamin Koch +4
We present a novel equivalence between scale-dependent gravity and scalar-tensor theories that have only a single scalar field with a canonical kinetic term in the Einstein frame a…
gr-qc2025
Zooming into the horizon region of black hole-type objects
Jesse Daas, Cristobal Laporte, Frank Saueressig +1
A universal prediction of quantum gravity is that the dynamics of general relativity is augmented by interactions that are of higher order in the spacetime curvature. Numerical exp…