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Integrability and Canonical Structure of d=2, N=16 Supergravity

H. Nicolai, H. Samtleben

hep-tharXiv:hep-th/9804152

Abstract

The canonical formulation of d=2, N=16 supergravity is presented. We work out the supersymmetry generators (including all higher order spinor terms) and the N=16 superconformal constraint algebra. We then describe the construction of the conserved non-local charges associated with the affine E9 symmetry of the classical equations of motion. These charges are shown to commute weakly with the supersymmetry constraints, and hence with all other constraints. Under commutation, they close into a quadratic algebra of Yangian type, which is formally the same as that of the bosonic theory. The Lie-Poisson action of E9 on the classical solutions is exhibited explicitly. Further implications of our results are discussed.

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