Hip-hop is 50 this month. The story goes that it began when Cindy Campbell hosted a jam in the rec room of 1520 Sedgwick Avenue in the Bronx to raise money to buy school clothes (you can do take a hip-hop tour of key locations). Hip hop has blurred into and inspired many other genres, notably rap and drill, but at its heart is the DJ, the MC and the B-boys and B-girls (dancers) as well as the graffiti (think New York subway trains).
12:30
Scattering amplitudes and Celestial Holography
Abstract
The S-Matrix in flat space is a naturally holographic observable. S-Matrix elements thus contain valuable information about the putative dual CFT. In this talk, I will first introduce some basic aspects of Celestial Holography and then explain how these can be inferred directly from scattering amplitudes. I will then focus on how the singularity structure of amplitudes interplays with traditional CFT structures particularly in the context of the operator product expansion (OPE) of the dual CFT. I will conclude with some discussion about the role played by supersymmetry in simplifying the putative dual CFT.