Nordita HEP Local Seminars

OPE coefficients, string field theory vertex and integrability

by Romuald Janik (Jagiellonian University)

Europe/Stockholm
Description
One of the key open problems in solving N=4 Super-Yang-Mills theory is the determination of OPE coefficients. We are searching for a framework which could, in principle, serve to determine the OPE coefficients at any value of the coupling. One such framework might be the string field theory vertex which up till now could be determined only for a free worldsheet theory. In this talk I will describe a novel approach to the string field theory vertex which should be applicable for any interacting but integrable worldsheet theory.