79 citations · 106 across the 4 of their papers we have counts for
12 papers
Non-perturbative propagators in quantum gravity
Benjamin Knorr, Marc Schiffer
We employ non-perturbative renormalisation group methods to compute the full momentum dependence of propagators in quantum gravity in general dimensions. We disentangle all differe…
The derivative expansion in asymptotically safe quantum gravity: general setup and quartic order
Benjamin Knorr
We present a general framework to systematically study the derivative expansion of asymptotically safe quantum gravity. It is based on an exact decoupling and cancellation of diffe…
Exact solutions and residual regulator dependence in functional renormalisation group flows
Benjamin Knorr
We construct exact solutions to the functional renormalisation group equation of the O(N) model and the Gross-Neveu model at large N for , without specifying the form of the…
Scattering amplitudes in affine gravity
Benjamin Knorr, Chris Ripken
Affine gravity is a connection-based formulation of gravity that does not involve a metric. After a review of basic properties of affine gravity, we compute the tree-level scatteri…
Graviton-Mediated Scattering Amplitudes from the Quantum Effective Action
Tom Draper, Benjamin Knorr, Chris Ripken +1
We employ the curvature expansion of the quantum effective action for gravity-matter systems to construct graviton-mediated scattering amplitudes for non-minimally coupled scalar f…
Finite Quantum Gravity Amplitudes -- no strings attached
Tom Draper, Benjamin Knorr, Chris Ripken +1
We study the gravity-mediated scattering of scalar fields based on a parameterisation of the Lorentzian quantum effective action. We demonstrate that the interplay of infinite towe…