(2024-03-05) Seminar: Tomáš Procházka -- Bethe ansatz in 2d conformal field theory


Tomáš Procházka  博士学术报告

Title: Bethe ansatz in 2d conformal field theory

Speaker: Tomáš Procházka

Affiliation: Institute of Physics, Czech Academy of Sciences(捷克科学院物理研究所)

Time: 16:00-17:00, Tuesday, 5th March, 2024 (UTC+8, Beijing Time)

Venue: Zoom Meeting (ID: 385 442 0225; Passcode: yauc)

Inviter: Ryo Suzuki

Tomas Prochazka - Slides - Bethe ansatz in 2d conformal field theory .pdf


The usual approach to study 2d CFT relies on the Virasoro algebra and its representation theory. Moving away from the criticality, this infinite dimensional symmetry is lost so it is useful to have a look at 2d CFTs from more general framework of quantum integrability. Every 2d conformal field theory has a natural infinite dimensional family of commuting higher spin Hamiltonians that can be constructed out of Virasoro generators. Perhaps surprisingly two different sets of Bethe ansatz equations are known that be used to diagonalize these (one by Bazhanov-Lukyanov-Zamolodchikov and another by Litvinov). I want to discuss these constructions as well as their relation to W algebras and the affine Yangian symmetry.


Tomáš Procházka is a junior scientist at the Institute of Physics of the Czech Academy of Sciences since 2021.


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