Coadjoint representation of the BMS group on celestial Riemann surfaces

Abstract The coadjoint representation of the BMS group in four dimensions is constructed in a formulation that covers both the sphere and the punctured plane. The structure constants are worked out for different choices of bases. The conserved current algebra of non-radiative asymptotically flat spa...

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Bibliographic Details
Main Authors: Glenn Barnich, Romain Ruzziconi
Format: Article
Language:English
Published: SpringerOpen 2021-06-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP06(2021)079