E-string compactifications and the van Diejen model |
TYPE | Student Seminar |
Speaker: | Belal Nazzal |
Affiliation: | Technion |
Date: | 14.01.2019 |
Time: | 11:30 - 12:30 |
Location: | Lidow Nathan Rosen (300) |
Abstract: | We study supersymmetric field theories in four dimensions, obtained from compactifications of the 6d E-string theory on Riemann surfaces, in presence of surface defects. We show that the index of a theory with defect can be obtained by acting with a difference operator on the index of the theory without defect, and show that this difference operator is, up to a constant shift, the van Diejen difference operator. |