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arXiv · 1006.4823

Generalized metric formulation of double field theory

Olaf Hohm·Chris Hull·Barton Zwiebach
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Abstract

The generalized metric is a T-duality covariant symmetric matrix constructed from the metric and two-form gauge field and arises in generalized geometry. We view it here as a metric on the doubled spacetime and use it to give a simple formulation with manifest T-duality of the double field theory that describes the massless sector of closed strings. The gauge transformations are written in terms of a generalized Lie derivative whose commutator algebra is defined by a double field theory extension of the Courant bracket.

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Olaf Hohm, Chris Hull, Barton Zwiebach. 2010-08-10. Generalized metric formulation of double field theory. https://doi.org/10.1007/jhep08(2010)008

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