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E$_9$ exceptional field theory II. The complete dynamics

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arxiv 2103.12118 v2 pith:CHXDUEYU submitted 2021-03-22 hep-th

Guillaume Bossard , Franz Ciceri , Gianluca Inverso , Axel Kleinschmidt , Henning Samtleben This is my paper
classification hep-th
keywords dynamicsexceptionalfieldsupergravitytheoryaffinecompleteformulation
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abstract

We construct the first complete exceptional field theory that is based on an infinite-dimensional symmetry group. E$_9$ exceptional field theory provides a unified description of eleven-dimensional and type IIB supergravity covariant under the affine Kac-Moody symmetry of two-dimensional maximal supergravity. We present two equivalent formulations of the dynamics, which both rely on a pseudo-Lagrangian supplemented by a twisted self-duality equation. One formulation involves a minimal set of fields and gauge symmetries, which uniquely determine the entire dynamics. The other formulation extends $\mathfrak{e}_9$ by half of the Virasoro algebra and makes direct contact with the integrable structure of two-dimensional supergravity. Our results apply directly to other affine Kac-Moody groups, such as the Geroch group of general relativity.

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Cited by 3 Pith papers

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