Generalized BMS algebra in higher even dimensions

Abstract

We revisit the status of asymptotic symmetries in higher even dimensions and propose a definition of superrotation charge beyond linearized gravity. We prove that there is a well-defined spacetime action of the superrotation charge on the space of asymptotically flat geometries. Additionally, we demonstrate that the Ward identity associated with superrotation charges follows from the subleading soft graviton theorem, which is a universal constraint (in $d>4$) along with the leading soft graviton theorem.

25 pages

References in corpus (23)

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Cited by in corpus (2)

• On the nature of Bondi-Metzner-Sachs transformations
• All near-horizon symmetries of the Schwarzschild black hole in linearised gravity