A-Model Correlators from the Coulomb Branch
arXiv:hep-th/0507187 · doi:10.1088/1126-6708/2006/02/044
Abstract
We compute the contribution of discrete Coulomb vacua to A-Model correlators in toric Gauged Linear Sigma Models. For models corresponding to a compact variety, this determines the correlators at arbitrary genus. For non-compact examples, our results imply the surprising conclusion that the quantum cohomology relations break down for a subset of the correlators.
27 pages, 1 xy-pic figure