Dimensionally Reduced Landau-Ginzburg Orbifolds with Discrete Torsion

Abstract

It is observed that a large class of $(2,2)$ string vacua with $n>5$ superfields can be rewritten as Landau_Ginzburg orbifolds with discrete torsion and $n=5$. The naive geometric interpretation (if one exists) would be that of a complex 3-fold, not necessarily Kähler but still with vanishing first Chern class.