Didina Serban 研究员学术报告
Title: Correlation functions in integrable supersymmetric gauge theories: integrability vs. localisation
Speaker: Didina Serban
Affiliation: Université Paris–Saclay and IPhT, CEA Saclay, France（法国巴黎萨克雷大学及理论物理研究所)
Time: 16:00-17:00, Friday, 6th June, 2025 (UTC+8, Beijing Time)
Venue: Zoom Meeting (ID: 385 442 0225; Passcode: yauc)
Inviter: Yunfeng Jiang （江云峰）
Abstract
Finding the right degrees of freedom is a key step in solving strongly interacting field theories. Considerable progress in this direction was made in the last decades for higher dimensional supersymmetric gauge theories, guided by dualities with string theory. Two complementary approaches have been particularly useful in the exploration of the quantum structure of these theories: one is supersymmetric localisation and the other is integrability. Very recently it was noticed that common structures appear in both approaches when they are applied to the N=2 super-conformal theory in four dimensions which is obtained as a Z_K orbifold of the N=4 super Yang-Mills (SYM) theory. This hints at a deeper structure underlying both localisation and integrability. A special class of three-point functions in the N=2 SYM theory were computed first by localisation, in terms of a Fredholm determinant of a Bessel operator generalising the Tracy-Widom distribution. The talk, based on a recently completed work in collaboration with Gwenaël Ferrando, Shota Komatsu and Gabriel Lefundes, will explain how this result can be derived from the integrability approach to correlation functions, which was developed initially for the N=4 SYM theory.
Speaker
Didina Serban is currently a researcher at the Université Paris–Saclay and the Institut de Physique Théorique, CEA, Saclay in France. Her fields of research interests include mathematical physics, quantum field theory and string theory.
The seminar will be broadcasted online by Zoom.
Interested people are free to join, without registration in advance.
The Zoom info is
URL: https://us02web.zoom.us/j/3854420225?pwd=SXY4eWJKOTBFZWJDaE16aXpTamY1QT09
Meeting ID: 385 442 0225
Passcode: yauc