Stringy WZW models as integrable deformations

by Alessandro Sfondrini (ETH, Zurich)

Tuesday 29 Jan 2019, 14:00 → 16:00 Europe/Zurich

4/2-037 - TH meeting room (CERN)

Integrability techniques have been crucial to compute
non-protected observables in AdS/CFT. Recently it was understood that
the AdS3xS3xT4 stringy Wess-Zumino-Witten model, which is most often
studied as a worldsheet CFT, can also be thought of as a very simple
integrable model---in fact, an integrable deformation (of the T-Tbar
type) of a free theory. I will describe how this can be done and how to
compute the full spectrum of this model; I will also comment on how one
might be able to compute more complicated observables, such as
correlation functions, by integrability.