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hep-th2026
Classification of order-two T-duality orbifolds at the SO(12) free fermionic point
Alon E. Faraggi, Stefan Groot Nibbelink, Benjamin Percival
Asymmetric orbifolds provide concrete examples of non-geometric constructions dubbed T-folds. All Z2 point groups of six dimensional asymmetric order-two orbifolds are identified.…
hep-th2026
Classification of Pati--Salam Asymmetric Heterotic String Orbifolds
Luke A. Detraux, Alon E. Faraggi, Benjamin Percival
We develop a systematic classification of asymmetric orbifold actions in Pati-Salam heterotic string vacua constructed in the free fermionic formulation. Starting fr…