Week 11.12.2022 – 17.12.2022

Monday (12 Dec)

AdS Virasoro-Shapiro from single-valued periods

Regular Seminar Luis Fernando Alday (University of Oxford)

at:
14:00 IC
room B1004
abstract:

We determine the full 1/sqrt(lambda) correction to the flat-space Wilson coefficients which enter the AdS Virasoro-Shapiro amplitude in N=4 SYM theory at strong coupling. The assumption that the Wilson coefficients are in the ring of single-valued multiple zeta values, as expected for closed string amplitudes, is surprisingly powerful and leads to a unique solution to the dispersive sum rules relating Wilson coefficients and OPE data. The corresponding OPE data fully agrees with and extends the results from integrability.

Wednesday (14 Dec)

Bootstrapping the 6D (2,0) theory with Reinforcement Learning

Regular Seminar Costis Papageorgakis (QMUL)

at:
13:45 KCL
room K0.16
abstract:

I will describe a method for approximately solving the crossing equations in a general CFT, using Reinforcement Learning as a stochastic optimiser. I will then present an application of this approach in the context of the 6D (2,0) theory