(2024-04-09) Seminar: Shota Komatsu -- 2d QCD and Integrability


 Shota Komatsu  研究员学术报告

Title: 2d QCD and Integrability

SpeakerShota Komatsu

AffiliationCERN, Switzerland(瑞士欧洲核子研究中心)

Time: 16:00-17:00, Tuesday, 9th April, 2024 (UTC+8, Beijing Time)

VenueZoom Meeting

Inviter: Jie Gu (顾杰), Yunfeng JIANG 江云峰)



We study analytical properties and integrable structures of the meson spectrum in large Nc QCD2. We show that the integral equation that determines the masses of the mesons, often called the ’t Hooft equation, is equivalent to finding solutions to a TQ-Baxter equation. Using the Baxter equation, we extract systematic expansions of the energy levels as well as analytic asymptotic expressions for wavefunctions. Our analysis extends previous results for a special quark mass by Fateev et al. to arbitrary quark masses. This reformulation, together with its relation to an inhomogeneous Fredholm equation, is particularly suited for analytical treatments and makes accessible the analytic structure of the spectrum in the complex plane of the quark masses. We also comment on applications of our techniques to non-perturbative topological string partition functions.



Dr. Shota Komatsu is currently a scientific staff researcher at the Department of Theoretical Physics of CERN. He received his Ph.D. from the University of Tokyo in 2014 and then worked as a postdoc at Perimeter Institute for Theoretical Physics in Canada (2014 - 2017) and as a postdoc at the Institute for Advanced Study (IAS), Princeton (2017 to 2020). In 2020, he joined the Department of Theoretical Physics of CERN.

His fields of interest includes Quantum Field TheoryString Theory and integrability.


The seminar will be broadcasted online by Zoom.

Interested people are free to join, without registration in advance.

The Zoom info is


Meeting ID: 385 442 0225

Passcode: yauc