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Supertranslations in Higher Dimensions Revisited

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arxiv 1811.00093 v2 pith:WZE2BZDO submitted 2018-10-31 hep-th gr-qc

Ankit Aggarwal This is my paper · ORCID
classification hep-thgr-qc
keywords dimensionshigherassociatedasymptoticevengravitonidentitiessoft
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In this paper, we revisit the question of identifying Soft Graviton theorem in higher (even) dimensions with Ward identities associated with Asymptotic symmetries. Building on the prior work of \cite{strominger}, we compute, from first principles, the (asymptotic) charge associated to Supertranslation symmetry in higher even dimensions and show that (i) these charges are non-trivial, finite and (ii) the corresponding Ward identities are indeed the soft graviton theorems.

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  1. Twistorial chiral algebras in higher dimensions

    hep-th 2025-01 accept novelty 7.0 of 10

    Hyperkähler gravity and hyperholomorphic gauge theory in 4m dimensions have chiral algebras Lham(C^{2m}) and Lg[C^{2m}] arising from twistor space and realized as soft symmetry algebras under a 2-sphere collinear limit.

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