118 citations · 387 across the 13 of their papers we have counts for
Showing 2022Show all
3 papers · 1 filter
hep-th2022★ 1 cited
Quadratic gravity potentials in de Sitter spacetime from Feynman diagrams
Renata Ferrero, Chris Ripken
We employ a manifestly covariant formalism to compute the tree-level amputated Green's function of non-minimally coupled scalar fields in quadratic gravity in a de Sitter backgroun…
hep-th2022★ 4 cited
Form Factors in Asymptotically Safe Quantum Gravity
Benjamin Knorr, Chris Ripken, Frank Saueressig
Asymptotic Safety implies that observables including scattering amplitudes remain finite at the highest energy scales. Traditionally, this feature is connected to an interacting fi…
hep-th2022★ 2 cited
Cartographing gravity-mediated scattering amplitudes: scalars and photons
Benjamin Knorr, Samuel Pirlo, Chris Ripken +1
The effective action includes all quantum corrections arising in a given quantum field theory. Thus it serves as a powerful generating functional from which quantum-corrected scatt…