Abstract
The doubled formulation of the worldsheet provides a description of string theory in which T-duality is promoted to a manifest symmetry. Here we extend this approach to \( \mathcal{N} \) = (2, 2) superspace providing a doubled formulation for bi-Hermitian/generalised Kähler target spaces. The theory is described by a single function, a doubled-generalised Kähler potential, supplemented with a manifestly \( \mathcal{N} \) = (2, 2) constraint. Several examples serve to illustrate this construction, including a discussion of the \( \mathcal{N} \) = (2, 2) description of T-folds.
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Blair, C.D.A., Hulik, O., Sevrin, A. et al. Doubled space and extended supersymmetry. J. High Energ. Phys. 2022, 119 (2022). https://doi.org/10.1007/JHEP08(2022)119
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DOI: https://doi.org/10.1007/JHEP08(2022)119