159 citations · 608 across the 16 of their papers we have counts for
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hep-th2017★ 12 cited
Reflection positivity in higher derivative scalar theories
Francesca Arici, Daniel Becker, Chris Ripken +2
Reflection positivity constitutes an integral prerequisite in the Osterwalder-Schrader reconstruction theorem which relates quantum field theories defined on Euclidean space to the…
hep-th2017★ 49 cited
On avoiding Ostrogradski instabilities within Asymptotic Safety
Daniel Becker, Chris Ripken, Frank Saueressig
We study the renormalization group flow of gravity coupled to scalar matter using functional renormalization group techniques. The novel feature is the inclusion of higher-derivati…