Toroidal Orbifold Models with a Wess-Zumino Term
arXiv:hep-th/9309090 · doi:10.1016/0370-2693(94)90495-2
Abstract
Closed bosonic string theory on toroidal orbifolds is studied in a Lagrangian path integral formulation. It is shown that a level one twisted WZW action whose field value is restricted to Cartan subgroups of simply-laced Lie groups on a Riemann surface is a natural and nontrivial extension of a first quantized action of string theory on orbifolds with an antisymmetric background field.
10 pages, LATEX, KOBE-TH-93-06 and NBI-HE-93-49