4 papers
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…
What is the Geometry of Effective Field Theories?
Timothy Cohen, Xiaochuan Lu, Zhengkang Zhang
We elaborate on a recently proposed geometric framework for scalar effective field theories. Starting from the action, a metric can be identified that enables the construction of g…
Recursion for Wilson-line Form Factors
Timothy Cohen, Marc Riembau
Matrix elements of Wilson-line dressed operators play a central role in the factorization of soft and collinear modes in gauge theories. When expressed using spinor helicity variab…
On Amplitudes and Field Redefinitions
Timothy Cohen, Xiaochuan Lu, Dave Sutherland
We derive an off-shell recursion relation for correlators that holds at all loop orders. This allows us to prove how generalized amplitudes transform under generic field redefiniti…