Generalized metric formulation of double field theory


DOI: 10.1007/JHEP08(2010)008

Cite this article as:
Hohm, O., Hull, C. & Zwiebach, B. J. High Energ. Phys. (2010) 2010: 8. doi:10.1007/JHEP08(2010)008


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.


Gauge SymmetrySpace-Time SymmetriesGlobal SymmetriesString Duality

Copyright information

© SISSA, Trieste, Italy 2010

Authors and Affiliations

  1. 1.Center for Theoretical PhysicsMassachusetts Institute of TechnologyCambridgeU.S.A.
  2. 2.The Blackett LaboratoryImperial College LondonLondonU.K.