From Free-Fermionic Constructions to Orbifolds and Back
Abstract
We systematically develop the explicit map between string vacua constructed in the Free Fermionic Formulation and their Z2N toroidal orbifold counterparts. We illustrate the map in various example classes of models, including cases relevant for string phenomenology, as well as in theories where space-time supersymmetry is broken by the stringy Scherk-Schwarz mechanism.
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