Abstract:
We describe a class of (2,2) superconformal field theories obtained by fibering a
Landau-Ginzburg orbifold CFT over a compact Kaehler base manifold. While such models are
naturally obtained as phases in a gauged linear sigma model, our construction is independent
of such an embedding. We discuss the general properties of such theories and present a
technique to study the massless spectrum of the associated heterotic compactification. We
test the validity of our method by applying it to hybrid phases of linear models and comparing
spectra among the phases.