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arXiv · hep-th/9503022

Pseudo-Duality

C. M. Hull·A. Van Proeyen
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Abstract

Proper symmetries act on fields while pseudo-symmetries act on both fields and coupling constants. We identify the pseudo-duality groups that act as symmetries of the equations of motion of general systems of scalar and vector fields and apply our results to $N=2,4$ and $8$ supergravity theories. We present evidence that the pseudo-duality group for both the heterotic and type II strings toroidally compactified to four dimensions is $Sp(56;\Z)\times D$, where $D$ is a certain subgroup of the diffeomorphism group of the scalar field target space. This contains the conjectured heterotic $S\times T$ or type II $U$ proper duality group as a subgroup.

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C. M. Hull, A. Van Proeyen. 1995-03-03. Pseudo-Duality. https://doi.org/10.1016/0370-2693(95)00408-d

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