期刊
PHYSICS LETTERS B
卷 720, 期 1-3, 页码 215-218出版社
ELSEVIER
DOI: 10.1016/j.physletb.2013.02.004
关键词
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资金
- Netherlands Organization for Scientific Research (NWO) under the VICI [680-47-603]
- Padova University [CPDA105015/10]
- MIUR-FIRB [RBFR1OQS5J]
Inspired by recent studies on string theory with non-geometric fluxes, we develop a differential geometry calculus combining usual diffeomorphisms with what we call beta-diffeomorphisms. This allows us to construct a manifestly bi-invariant Einstein-Hilbert type action for the graviton, the dilaton and a dynamical (quasi-)symplectic structure. The equations of motion of this symplectic gravity theory, further generalizations and the relation to the usual form of the string effective action are discussed. The Seiberg-Witten limit, known for open strings to relate commutative with non-commutative theories, makes an interesting appearance. (c) 2013 Elsevier B.V. All rights reserved.
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