QG Group meeting: S-matrix vs. lightcone formalism in de Sitter space

This is the weekly QG group meeting.
Speaker: Yasha Neiman.
Title: "S-matrix vs. lightcone formalism in de Sitter space"

This is a continuation of last week's Theoretical Physics Seminar, in which I talk about the similarities and differences between a dS scattering matrix and a dS lightcone formalism.