Spectral flow as a map between N=(2,0)N=(2,0)-models

The space of (2,0)(2,0) models is of particular interest among all heterotic-string models because it includes the models with the minimal SO(10)SO(10) unification structure, which is well motivated by the Standard Model of particle physics data. The fermionic Z2×Z2Z2×Z2 heterotic-string models revealed the existence of a new symmetry in the space of string configurations under the exchange of spinors and vectors of the SO(10)SO(10) GUT group, dubbed spinor–vector duality. In this paper we generalize this idea to arbitrary internal rational conformal field theories (RCFTs). We explain how the spectral flow operator normally acting within a general (2,2)(2,2) theory can be used as a map between (2,0)(2,0) models. We describe the details, give an example and propose more simple currents that can be used in a similar way.