Physics

In this talk I will attempt to answer a simple question, "why do polylogs appear in loop level scattering amplitudes?". There will be an interesting twist as we will find not a single answer, but two. One will be based on an analysis of branch...

We introduce a new numerical algorithm based on semidefinite programming to efficiently compute bounds on operator dimensions, central charges, and OPE coefficients in 4D conformal and N=1 superconformal field theories. Using our algorithm, we...