Conserved charges for gravity with locally AdS asymptotics

Details Conserved charges for gravity with locally AdS asymptotics Conserved charges for gravity with locally AdS asymptotics

1999-09-04

arxiv.org/abs/gr-qc/9909015v2

Phys.Rev.Lett. 84 (2000) 1647-1650

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, 2 Columns, revtex. Last version for Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.84.1647

A new formula for the conserved charges in 3+1 gravity for spacetimes with local AdS asymptotic geometry is proposed. It is shown that requiring the action to have an extremum for this class of asymptotia sets the boundary term that must be added to the Lagrangian as the Euler density with a fixed weight factor. The resulting action gives rise to the mass and angular momentum as Noether charges associated to the asymptotic Killing vectors without requiring specification of a reference background in order to have a convergent expression. A consequence of this definition is that any negative constant curvature spacetime has vanishing Noether charges. These results remain valid in the limit of vanishing cosmological constant.

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