Seminars Digest, Vol 43, Issue 6

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Today's Topics:

1. Friday 29.04.2022 (Serge Krashakov)

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Message: 1
Date: Thu, 28 Apr 2022 18:50:41 +0300
From: Serge Krashakov <sakr@itp.ac.ru>
To: staff@itp.ac.ru, students@itp.ac.ru, seminars@itp.ac.ru
Subject: [Landau ITP Seminars] Friday 29.04.2022
Message-ID: <be35569e-8800-f8fb-0f29-9bf880fa29c0@itp.ac.ru>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Уважаемые коллеги!

На заседании Ученого совета в пятницу 29 апреля в 11:30 будут заслушаны
2 доклада:

1) A. Litvinov
*Affine Yangian of gl(2) and integrable structures of superconformal
field theory*

We study of integrable structures in superconformal field theory and
more general coset CFT's related to the affine Yangian
Y(\hat{\mathfrak{gl}}gl^​(2)). We derive the relation between the RLL
and current realizations and prove Bethe anzatz equations for the
spectrum of Integrals of Motion.

2) A. Litvinov
*On loop corrections to integrable 2D sigma model backgrounds* (короткий
доклад)

We study regularization scheme dependence of β-function for sigma models
with two-dimensional target space. Working within four-loop
approximation, we conjecture the scheme in which the β-function retains
only two tensor structures up to certain terms containing ζ_{3}3​. Using
this scheme, we provide explicit solutions to RG flow equation
corresponding to Yang-Baxter- and λ-deformed SU(2)/U(l) sigma models,
for which these terms disappear.

ID и пароль онлайн-трансляции в Zoom те же, что и для предыдущих
трансляций докладов на Ученом совете:
https://zoom.us/j/96899364518?pwd=MzBsR2lYT0lYL2x2b1oyNU9LeWlWUT09
Meeting ID: 968 9936 4518
Пароль: 250319
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