Fluxes in Exceptional Field Theory and Threebrane Sigma-Models
arXiv:1901.07775 · doi:10.1007/JHEP05(2019)055
Abstract
Starting from a higher Courant bracket associated to exceptional generalized geometry, we provide a systematic derivation of all types of fluxes and their Bianchi identities for four-dimensional compactifications of M-theory. We show that these fluxes may be understood as generalized Wess-Zumino terms in certain topological threebrane sigma-models of AKSZ-type, which relates them to the higher structure of a Lie algebroid up to homotopy. This includes geometric compactifications of M-theory with G-flux and on twisted tori, and also its compactifications with non-geometric Q- and R-fluxes in specific representations of the U-duality group SL(5) in exceptional field theory.
34 pages; v2: modified fluxes in Section 6, references added; v3: minor corrections, references added; Final version published in JHEP
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