Potentials for topological sigma models

Abstract

>Topological sigma models with potential terms are obtained by twisting N=2 supersymmetric sigma models. These models exist for manifolds with isometries and potential terms in their actions are built out of the corresponding Killing vector fields. It turns out that, as ordinary topological sigma models, the models resulting after twisting N=2 supersymmetry can be generalized to the case of almost hermitian manifolds.