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  • Higher spins and Yangian sy...
    Gaberdiel, Matthias R.; Gopakumar, Rajesh; Li, Wei; Peng, Cheng

    The journal of high energy physics, 04/2017, Letnik: 2017, Številka: 4
    Journal Article

    A bstract The relation between the bosonic higher spin W ∞ λ algebra, the affine Yangian of g l 1 , and the SH c algebra is established in detail. For generic λ we find explicit expressions for the low-lying W ∞ λ modes in terms of the affine Yangian generators, and deduce from this the precise identification between λ and the parameters of the affine Yangian. Furthermore, for the free field cases corresponding to λ = 0 and λ = 1 we give closed-form expressions for the affine Yangian generators in terms of the free fields. Interestingly, the relation between the W ∞ modes and those of the affine Yangian is a non-local one, in general. We also establish the explicit dictionary between the affine Yangian and the SH c generators. Given that Yangian algebras are the hallmark of integrability, these identifications should pave the way towards uncovering the relation between the integrable and the higher spin symmetries.