Green-Schwarz mechanism and α′-deformed Courant brackets
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Hohm-2015-Green-Schwarz mechan.pdf
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Author(s)
Hohm, Olaf
Zwiebach, Barton
Date Issued
January 2015
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Hohm, Olaf, and Barton Zwiebach. “Green-Schwarz Mechanism and Α′-Deformed Courant Brackets.” J. High Energ. Phys. 2015, no. 1 (January 2015).
Version
Final published version
Abstract
We establish that the unusual two-form gauge transformations needed in the Green-Schwarz anomaly cancellation mechanism fit naturally into an α′-deformed generalized geometry. The algebra of gauge transformations is a consistent deformation of the Courant bracket and features a nontrivial modification of the diffeomorphism group. This extension of generalized geometry emerged from a ‘doubled α′-geometry’, which provides a construction of exactly gauge and T-duality invariant α′ corrections to the effective action.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1007/JHEP01(2015)012
