E${}_9$ exceptional field theory I. The potential

Abstract

We construct the scalar potential for the exceptional field theory based on the affine symmetry group E${}_9$. The fields appearing in this potential live formally on an infinite-dimensional extended spacetime and transform under E${}_9$ generalised diffeomorphisms. In addition to the scalar fields expected from D=2 maximal supergravity, the invariance of the potential requires the introduction of new constrained scalar fields. Other essential ingredients in the construction include the Virasoro algebra and indecomposable representations of E${}_9$. Upon solving the section constraint, the potential reproduces the dynamics of either eleven-dimensional or type IIB supergravity in the presence of two isometries.

arXiv comment61 pages

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Cited by in corpus (18)

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• On supersymmetric E11 exceptional field theory
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• Infinity-enhancing of Leibniz algebras
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