paper

7-dimensional Consistent Truncations using Exceptional Field Theory

arXiv:1612.01692 · doi:10.1007/JHEP06(2017)026

Abstract

We show how to construct seven-dimensional half-maximally supersymmetric consistent truncations of 11-/10-dimensional SUGRA using exceptional field theory. Such truncations are defined on generalised -structure manifolds and give rise to seven-dimensional half-maximal gauged supergravities coupled to vector multiplets and thus with scalar coset space . The consistency conditions for the truncation can be written in terms of the generalised Lie derivative and take a simple geometric form. We show that after imposing certain "doublet" and "closure" conditions, the embedding tensor of the gauged supergravity is given by the intrinsic torsion of generalised -connections and automatically satisfies the linear constraint of seven-dimensional half-maximal gauged supergravities, as well as the quadratic constraint when the section condition is satisfied.

46 pages; v2: minor changes, published version

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