A new vista on the Heterotic Moduli Space from Six and Three Dimensions

Authors: Michele Del Zotto, Marco Fazzi, Suvendu Giri Preprint number: UUITP-23/23 Abstract: We settle a long-standing question about the hypermultiplet moduli spaces of the heterotic strings on ALE singularities. These heterotic backgrounds are specified by the singularity type, an instanton number, and a (nontrivial) flat connection at infinity. Building on their interpretation as six-dimensional theories, we determine a class of three-dimensional N=4 quiver gauge theories whose quantum corrected Coulomb branch coincides with the exact heterotic hypermultiplet moduli space.