Doubled α′-geometry
By O. Hohm, W. Siegel, B. Zwiebach. 2013
190 citations recorded by the source corpus.
A bstractWe 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′.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/753db93a4fee444b5800881ec22c348381dfd63e
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Citations in the corpus
- Consistent Kaluza-Klein truncations via exceptional field theory (2014, background): “In particular, the results of [69] provide an exactly O(d, d) invariant description of a subsector of heterotic string theory to all orders in α′.”
- The spacetime of double field theory: Review, remarks, and outlook (2013, methodology): “Thus at order α′ the one-form and the vector mix under generalized diffeomorphisms! Given the gauge structure above, reference [19] looked for fields and gauge transformations.”