On Nonabelian Duality
arXiv:hep-th/9308154 · doi:10.1016/0550-3213(94)90230-5
Abstract
We show that nonabelian duality is not a symmetry of a conformal field theory, but rather a symmetry between different theories. We expose a nonlocal symmetry of nonabelian dual theories. We show how, in the case with vanishing isotropy, it can be used to find the inverse dual transformation. Finally, we consider a number of new examples.
19 pages, ITP-SB-93-44 and RI-152-93. (revised version: note added, other minor changes)