3 papers
hep-th2025
Equivalence of effective actions
Kevin Falls
For the same quantum field theory distinct effective actions can be obtained by coupling sources to different choices of field variables. This is the same as considering effective…
hep-th2025
Path integral measures and diffeomorphism invariance
Alfio Bonanno, Kevin Falls, Renata Ferrero
Much like the action, diffeomorphism invariance can be used to fix the form of the path integral measure in quantum gravity. Moreover, since there is a redundancy between what cons…
hep-th2025
Gauge invariant effective actions for dressed fields
Kevin Falls
A new fundamental form of the path integral for theories with local symmetry is introduced. It is utilised to construct effective actions that generate correlation functions of dre…