193 citations · 1k across the 26 of their papers we have counts for
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Combinatorial aspects in the one-loop renormalization of higher derivative theories
Christian F. Steinwachs
An efficient way to calculate one-loop counterterms within the Feynman diagrammatic approach and dimensional regularization is to expand the propagators in the integrands of the Fe…
Higgs field in cosmology
Christian F. Steinwachs
The accelerated expansion of the early universe is an integral part of modern cosmology and dynamically realized by the mechanism of inflation. The simplest theoretical description…
Geometrized quantum Galileons
Lavinia Heisenberg, Christian F. Steinwachs
We investigate the renormalization structure of the scalar Galileon model in flat spacetime by calculating the one-loop divergences in a closed geometric form. The geometric formul…
One-loop renormalization in Galileon effective field theory
Lavinia Heisenberg, Christian F. Steinwachs
We investigate the renormalization structure of scalar Galileons in flat spacetime. We explicitly calculate the ultraviolet divergent one-loop contributions to the 2-point, 3-point…
Quantum gravitational corrections to the inflationary power spectra in scalar-tensor theories
Christian F. Steinwachs, Matthijs L. van der Wild
We derive the first quantum gravitational corrections to the inflationary power spectra for a general single-field scalar-tensor theory which includes a non-minimal coupling to gra…