PIRSA:26060049

Video URL

https://pirsa.org/26060049

Spin Ruijsenaars-Schneider models are Coulomb branches

Hardi, L. (2026). Spin Ruijsenaars-Schneider models are Coulomb branches. Perimeter Institute for Theoretical Physics. https://pirsa.org/26060049

Hardi, Lukas. Spin Ruijsenaars-Schneider models are Coulomb branches. Perimeter Institute for Theoretical Physics, Jun. 02, 2026, https://pirsa.org/26060049 

          @misc{ scivideos_PIRSA:26060049,
            doi = {10.48660/26060049},
            url = {https://pirsa.org/26060049},
            author = {Hardi, Lukas},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {Spin Ruijsenaars-Schneider models are Coulomb branches},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2026},
            month = {jun},
            note = {PIRSA:26060049 see, \url{https://scivideos.org/pirsa/26060049}}
          }

Lukas Hardi Universität Hamburg

Talk numberPIRSA:26060049
DOI10.48660/26060049
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

To every 4d N=2 quiver theory compactified on a circle, one can associate its moduli space of Coulomb vacua, also called the K-theoretic Coulomb branch of the quiver, which carries the structure of a Poisson variety. In this talk, we explain that the (abelianized) K-theoretic Coulomb branch of the necklace quiver is the complex integrable system known as the trigonometric spin Ruijsenaars–Schneider model. This is achieved by exhibiting a collection of L-operators associated to the arrows in the necklace quiver, thereby defining an integrable spin chain. Time permitting, we will discuss a quantization of the model.