Work

Classical central extension for asymptotic symmetries at null infinity in three spacetime dimensions

Year: 2007

Type: article

Abstract: The symmetry algebra of asymptotically flat spacetimes at null infinity in three dimensions is the semi-direct sum of the infinitesimal diffeomorphisms on the circle with an Abelian ideal of supertranslations. The associated charge algebra is shown to admit a non-trivial classical central extension of Virasoro type closely related to that of the anti-de Sitter case.

Source: Classical and Quantum Gravity

DOI: 10.1088/0264-9381/24/5/f01

Authors: Glenn Barnich, Geoffrey Compère

Institutions: Université Libre de Bruxelles, International Solvay Institutes

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: European Commission, Fonds De La Recherche Scientifique - FNRS

Award: G3565904420