Symmetry, Integrability and Geometry: Methods and Applications (SIGMA)

SIGMA 14 (2018), 036, 20 pages      arXiv:1801.00960      https://doi.org/10.3842/SIGMA.2018.036
Contribution to the Special Issue on Elliptic Hypergeometric Functions and Their Applications

Surface Defects in E-String Compactifications and the van Diejen Model

Belal Nazzal and Shlomo S. Razamat
Department of Physics, Technion, Haifa 32000, Israel

Received January 11, 2018, in final form April 03, 2018; Published online April 17, 2018

Abstract
We study the supersymmetric index of four dimensional theories obtained by compactifications of the six dimensional E string theory on a Riemann surface. In particular we derive the difference operator introducing certain class of surface defects to the index computation. The difference operator turns out to be, up to a constant shift, an analytic difference operator discussed by van Diejen.

Key words: QFT; supersymmetry; analytic difference operators.

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