159 citations · 1.6k across the 29 of their papers we have counts for
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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…
Lessons from conformally reduced quantum gravity
Benjamin Knorr
In this work we study a significantly enlarged truncation of conformally reduced quantum gravity in the context of Asymptotic Safety, including all operators that can be resolved i…
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…