Doubled α ′-geometry
Name
Hohm-2014-Doubled a'-geometry.pdf
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881.77 KB
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Author(s)
Hohm, Olaf
Siegel, Warren
Zwiebach, Barton
Date Issued
February 2014
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Hohm, Olaf, Warren Siegel, and Barton Zwiebach. “Doubled α ′-Geometry.” J. High Energ. Phys. 2014, no. 2 (February 2014).
Version
Final published version
Abstract
We develop doubled-coordinate field theory to determine the α ′ corrections to the massless sector of oriented bosonic closed string theory. Our key tool is a string current algebra of free left-handed bosons that makes O(D,D) T-duality manifest. While T-dualities are unchanged, diffeomorphisms and b-field gauge transformations receive corrections, with a gauge algebra given by an α ′-deformation of the duality-covariantized Courant bracket. The action is cubic in a double metric field, an unconstrained extension of the generalized metric that encodes the gravitational fields. Our approach provides a consistent truncation of string theory to massless fields with corrections that close at finite order in α ′.
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/JHEP02(2014)065
