Double field theory of type II strings
Author(s)
Hohm, Olaf; Kwak, Seung Ki; Zwiebach, Barton
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We use double field theory to give a unified description of the low energy limits of type IIA and type IIB superstrings. The Ramond-Ramond potentials fit into spinor representations of the duality group O(D, D) and field-strengths are obtained by acting with the Dirac operator on the potentials. The action, supplemented by a Spin+ (D, D)-covariant self-duality condition on field strengths, reduces to the IIA and IIB theories in different frames. As usual, the NS-NS gravitational variables are described through the generalized metric. Our work suggests that the fundamental gravitational variable is a hermitian element of the group Spin(D, D) whose natural projection to O(D, D) gives the generalized metric.
Date issued
2011-09Department
Massachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of PhysicsJournal
Journal of High Energy Physics
Publisher
Spring Berlin/Heidelberg
Citation
Hohm, Olaf, Seung Ki Kwak, and Barton Zwiebach. “Double field theory of type II strings.” Journal of High Energy Physics 2011.9 (2011).
Version: Author's final manuscript
ISSN
1029-8479