Generalized metric formulation of double field theory

Details Generalized metric formulation of double field theory Generalized metric formulation of double field theory

2010-06-24

arxiv.org/abs/1006.4823v2

JHEP 1008:008,2010

Physics

High Energy Physics

High Energy Physics - Theory

36 pages, v2: minor corrections

Scientific paper

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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