Jul 24 – 29, 2023
Perimeter Institute for Theoretical Physics
America/Toronto timezone

Challenge Talk 2 - Feynman's Last Blackboard: From Bethe Ansatz to Langlands Duality

Jul 25, 2023, 10:15 AM
PI/1-100 - Theatre (Perimeter Institute for Theoretical Physics)

PI/1-100 - Theatre

Perimeter Institute for Theoretical Physics



Edward Frenkel (UC Berkeley)


Richard Feynman's last blackboard at Caltech contains a number of tantalizing inscriptions about Bethe Ansatz in quantum integrable models, which fascinated him in the last years of his life. After reviewing some basic examples, I will present a modern perspective on the subject, linking it to dualities in QFT and String Theory, as well as the Langlands duality in mathematics. I will then discuss some recent developments that lend support to Feynman's intuition that these ideas could be useful in the study of 4d gauge theory, and formulate some open questions.

Presentation materials

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