193 citations · 1k across the 26 of their papers we have counts for
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Non-perturbative quantum Galileon in the exact renormalization group
Christian F. Steinwachs
We investigate the non-perturbative renormalization group flow of the scalar Galileon model in flat space. We discuss different expansion schemes of the Galileon truncation, includ…
Scalaron-Higgs inflation reloaded: Higgs-dependent scalaron mass and primordial black hole dark matter
Anirudh Gundhi, Christian F. Steinwachs
We propose an extension of the scalaron-Higgs model by a non-minimal coupling of the Standard Model Higgs boson to the quadratic Ricci scalar resulting in a Higgs-dependent scalaro…
Primordial black hole dark matter in dilaton-extended two-field Starobinsky inflation
Anirudh Gundhi, Sergei V. Ketov, Christian F. Steinwachs
We investigate the production of primordial black holes and their contribution to the presently observed dark matter in a dilaton two-field extension of Starobinsky's quadratic $f(…
Towards a unitary, renormalizable and ultraviolet-complete quantum theory of gravity
Christian F. Steinwachs
For any fundamental quantum field theory, unitarity, renormalizability, and relativistic invariance are considered to be essential properties. Unitarity is inevitably connected to…
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…