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arXiv · 1404.0912

O(d,d)-Duality in String Theory

Felix Rennecke
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Abstract

A new method for obtaining dual string theory backgrounds is presented. Preservation of the Hamiltonian density and the energy momentum tensor induced by O(d,d)-transformations leads to a relation between dual sets of coordinate one-forms accompanied by a redefinition of the background fields and a shift of the dilaton. The necessity of isometric directions arises as integrability condition for this map. The isometry algebra is studied in detail using generalised geometry. In particular, non-abelian dualities and beta-transformations are contained in this approach. The latter are exemplified by the construction of a new approximate non-geometric background.

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Felix Rennecke. 2014-09-21. O(d,d)-Duality in String Theory. https://doi.org/10.1007/jhep10(2014)069

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