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Non-geometric String Backgrounds and Worldsheet Algebras (0805.4571v2)
Published 29 May 2008 in hep-th
Abstract: Using worldsheet Hamiltonian methods we derive a charge algebra which generalizes the Courant bracket to include fluxes of general index type. This is achieved by coupling a bi-vector to the Hamiltonian of the Polyakov model. This bracket is useful to describe so-called non-geometric backgrounds and has been discussed in the mathematics literature by Dmitry Roytenberg.
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