Comments on class S(YK)
Abstract
A bstract We present a DSSYK-like interpretation of the Schur half-indices of đť’© = 2 SU(2) gauge theories with matter, in the presence of fundamental Wilson lines. The Schur half-indices of these theories can be understood as transition amplitudes in a non-vacuum sector of ordinary DSSYK. In the language of chord diagrams, the half-indices are obtained by summing over diagrams with special segments, which correspond to coherent states of the q -oscillator algebra. In addition, we show that the Schur half-index of SU(2) gauge theory with n F = 4 fundamental half-hypermultiplets corresponds to the partition function of a particle on the quantum disk.
Fields of Study & Subjects
Metallurgical Processes and Thermodynamics
Non-Destructive Testing Techniques
Publication details
- Journal / source
- Journal of High Energy Physics
- Publisher
- Springer Science and Business Media LLC
- Volume
- 2026
- Issue
- 2
- Publication date
- 3 February 2026
- Language
- EN