Speaker
Hayden Lee
Description
In this talk, I will present a new mathematical perspective of cosmological correlators in FRW spacetimes. These correlators have an integral representation in boundary kinematic space, which can be obtained from a finite set of master integrals that satisfy interesting differential equations. I will describe a graphical representation of these differential equations and show how they can be derived from simple graphical rules. This allows us to reformulate bulk time evolution as an energy flow on boundary kinematics, and provides a new way to understand the analytic structure of cosmological correlators.
