Supersymmetric AdS${}_7$ and AdS${}_6$ vacua and their consistent truncations with vector multiplets

Abstract

Using exceptional field theory we construct supersymmetric warped AdS${}_7$ vacua of massive IIA and AdS${}_6$ vacua of IIB, as well as their consistent truncations including vector multiplets. We show there are no consistent truncations of massive IIA supergravity around its supersymmetric AdS${}_7$ vacua with vector multiplets when the Roman's mass is non-vanishing. For AdS${}_6$ vacua of IIB supergravity, we find that in addition to the consistent truncation to pure $\mathrm{F}(4)$ gauged SUGRA, the only other half-maximal truncations that are consistent result in $\mathrm{F}(4)$ gauged SUGRA coupled to one or two Abelian vector multiplets, to three non-Abelian vector multiplets, leading to an $\mathrm{ISO}(3)$ gauged SUGRA, or to three non-Abelian plus one Abelian vector multiplet, leading to an $\mathrm{ISO}(3)\times \mathrm{U}(1)$ gauged SUGRA. These consistent truncations with vector multiplets exist when the two holomorphic functions that define the AdS${}_6$ vacua satisfy certain differential conditions which we derive. We use these to deduce that no globally regular AdS${}_6$ solutions admit a consistent truncation to $\mathrm{F}(4)$ gauged SUGRA with two vector multiplets, and show that the Abelian T-dual of the Brandhuber-Oz vacuum allows a consistent truncation to $\mathrm{F}(4)$ gauged SUGRA with a single vector multiplet.

58 pages plus appendices

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• Kaluza-Klein fermion mass matrices from Exceptional Field Theory and $\mathcal{N}=1$ spectra
• Five-branes wrapped on topological disks from 7D N=2 gauged supergravity
• Holographic RG flows and symplectic deformations of N=4 gauged supergravity
• New supersymmetric Janus solutions from N=4 gauged supergravity