Abstract
We consider “gauge invariant” operators in SymN T 4, the symmetric product orbifold of N copies of the 2d supersymmetric sigma model with T 4 target. We discuss a spin chain representation for single-cycle operators and study their two point functions at large N. We perform systematic calculations at the orbifold point (“tree level”), where non-trivial mixing is already present, and some sample calculations to first order in the blow-up mode of the orbifold (“one loop”).
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