ITMP Seminar "Sigma models as Gross-Neveu models"

Dear Colleagues,

We are pleased to announce that the next ITMP seminar will be held on Wednesday, Oct 20, at 18:00 (Moscow time). It will take place in ITMP, in person, room Г-725. It will also be possible to participate online via zoom.

Speaker: Dr. Dmitry Bykov, Steklov Mathematical Institute, ITMP MSU

Title: Sigma models as Gross-Neveu models

Abstract: I will show that there is a wide class of integrable sigma models that are exactly and explicitly equivalent to bosonic Gross-Neveu models. In full generality these are models with quiver variety phase spaces, but the familiar CP^n, Grassmannian or flag manifold sigma models belong to this class as well. This approach leads to a new take on topics such as RG (Ricci) flow, construction of integrable deformations and the inclusion of fermions. In particular, it provides a way of obtaining worldsheet SUSY theories from target space SUSY theories by means of a supersymplectic quotient.

This is a review of topics covered in arXiv:2006.14124, 2009.04608, 2101.11638, 2106.15598.

If you want to join the seminar please register here before 14:00, October 20 here.

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