Staggered modules of N = 2 superconformal minimal models

Abstract

We investigate a class of reducible yet indecomposable modules over the N=2 superconformal algebras. These so-called staggered modules exhibit a non-diagonalisable action of the Virasoro mode L0. Using recent results on the coset construction of N=2 minimal models, we explicitly construct such modules for central charges c=−1 and c=−6. We also describe spectral-flow orbits and symmetries of the families of staggered modules which arise via the coset.