Abstract
We systematically develop the explicit map between string vacua constructed in the Free Fermionic Formulation and their \( {\mathbb{Z}}_2^N \) 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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Acknowledgments
We would like to thank Carlo Angelantonj for valuable discussions. Furthermore, we are grateful to the Centre de Physique Théorique de l’Ecole Polytechnique and the Laboratoire de Physique de l’Ecole Normale Supérieure for their hospitality during various stages of this work.
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Florakis, I., Rizos, J. From free-fermionic constructions to orbifolds and back. J. High Energ. Phys. 2024, 151 (2024). https://doi.org/10.1007/JHEP01(2024)151
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DOI: https://doi.org/10.1007/JHEP01(2024)151