Chiral correlators in Landau-Ginsburg theories and N=2 superconformal models

Abstract

Chiral correlation functions are computed in N=2 Landau-Ginsburg models using the ϵ-expansion and the superconformal Ward identities for the Landau-Ginsburg effective action. They are also computed directly using superconformal model techniques. The same results are obtained yielding further confirmation of the identification of superconformal minimal models with Landau-Ginsburg models evaluated at their fixed points. The formulae for the chiral commutators that we compute are extremely simple when expressed in terms of effective actions.