3 papers
hep-th2026
Feynman Tree Theorem and the Gelfand--Yaglom Formula
Ipak Fadakar, Guilherme L. Pimentel, Behrang Tafreshi
The Gelfand--Yaglom formula equates the one-loop determinant of a Schrödinger operator with Dirichlet boundary conditions to the solution of an initial value problem. Following a…
hep-th2025
Geometry of soft scalars at one loop
Timothy Cohen, Ipak Fadakar, Andreas Helset +1
We extend the soft theorems for scattering amplitudes of scalar effective field theories to one-loop order. Our analysis requires carefully accounting for the fact that the soft li…
hep-th2025
Superadditivity at Large Charge
Timothy Cohen, Ipak Fadakar, Andrew Gomes +2
The weak gravity conjecture has been invoked to conjecture that the dimensions of charged operators in a CFT should obey a superadditivity relation (sometimes referred to as convex…