Séminaire - Glenn Barnich : Coadjoint Representation and Geometric Action for the BMS Group

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Recorded31 May 2023

Publisherpodcast.college-de-france.fr

Handlerec:10854935

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Marc HenneauxCollège de FranceChamps, cordes et gravitéAnnée 2022-2023La structure asymptotique de l'espace-temps (II)Séminaire - Glenn Barnich : Coadjoint Representation and Geometric Action for the BMS Group The coadjoint representation of the BMS4 group is constructed and related to the conserved current algebra of non-radiative asymptotically flat spacetimes at null infinity. The associated geometric action is a field theory in two plus one dimensions whose Poisson bracket algebra of Noether charges realizes the BMS4 Lie algebra.Glenn Barnich, Université Libre de Bruxelles, Belgique

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