Speaker
Maegan Anderson
(University of Edinburgh)
Description
Higher-derivative QFT’s are famously non-unitary, they suffer with growing modes and negative-norm states reflecting the classical Ostrogradsky instability. In this talk, I will present an interacting model whose renormalisation group flow admits a special line of solutions. On this special line we find preliminary evidence that the theory may be perturbatively unitary.
Author
Maegan Anderson
(University of Edinburgh)
