Maximal D=2 supergravities from higher dimensions

Abstract

We develop in detail the general framework of consistent Kaluza-Klein truncations from D=11 and type II supergravities to gauged maximal supergravities in two dimensions. In particular, we unveil the complete bosonic dynamics of all gauged maximal supergravities that admit a geometric uplift. Our construction relies on generalised Scherk-Schwarz reductions of E${}_9$ exceptional field theory. The application to the reduction of D=11 supergravity on $S^8\times S^1$ to SO(9) gauged supergravity is presented in a companion paper.

arXiv commentPublished version (46 pages plus appendices)

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