1 research outputs found
Topological Orbifold Models and Quantum Cohomology Rings
We discuss the toplogical sigma model on an orbifold target space. We
describe the moduli space of classical minima for computing correlation
functions involving twisted operators, and show, through a detailed computation
of an orbifold of by the dihedral group how to compute
the complete ring of observables. Through this procedure, we compute all the
rings from dihedral orbifolds; we note a similarity with rings
derived from perturbed series superpotentials of the classification
of minimal models. We then consider and show how the
techniques of topological-anti-topological fusion might be used to compute
twist field correlation functions for nonabelian orbifolds.Comment: 48 pages, harvmac, HUTP-92/A06