Double field theory at order α′
Name
Hohm-2014-Double field theory.pdf
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834.16 KB
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Author(s)
Hohm, Olaf
Zwiebach, Barton
Date Issued
November 2014
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Hohm, Olaf, and Barton Zwiebach. “Double Field Theory at Order Α′.” J. High Energ. Phys. 2014, no. 11 (November 2014).
Version
Final published version
Abstract
We investigate α′ corrections of bosonic strings in the framework of double field theory. The previously introduced “doubled α′-geometry” gives α′-deformed gauge transformations arising in the Green-Schwarz anomaly cancellation mechanism but does not apply to bosonic strings. These require a different deformation of the duality-covariantized Courant bracket which governs the gauge structure. This is revealed by examining the α′ corrections in the gauge algebra of closed string field theory. We construct a four-derivative cubic double field theory action invariant under the deformed gauge transformations, giving a first glimpse of the gauge principle underlying bosonic string α′ corrections. The usual metric and b-field are related to the duality covariant fields by non-covariant field redefinitions.
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
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1007/jhep11(2014)075
