25 citations · 67 across the 11 of their papers we have counts for
4 papers · 1 filter
Conformal graphs as twisted partition functions
Manthos Karydas, Songyuan Li, Anastasios C. Petkou +1
We show that a class of -loop conformal ladder graphs correspond to twisted partition functions of free massive complex scalars in dimensions. The graphs arise as four-…
Path Integral Factorization and the Gravitational Effective Action
Patrick Draper, Szilard Farkas, Manthos Karydas
We discuss the factorization and continuity properties of fields in the Euclidean gravitational path integral with higher dimension operators constructed from powers of the Riemann…
Vacuum Decay in Time-Dependent Backgrounds
Patrick Draper, Manthos Karydas, Hao Zhang
We develop semiclassical methods for studying bubble nucleation in models with parameters that vary slowly in time. Introducing a more general rotation of the time contour allows a…
Weyl-Ambient Geometries
Weizhen Jia, Manthos Karydas, Robert G. Leigh
Weyl geometry is a natural extension of conformal geometry with Weyl covariance mediated by a Weyl connection. We generalize the Fefferman-Graham (FG) ambient construction for conf…