Lightcone reference for total gravitational energy

Details Lightcone reference for total gravitational energy Lightcone reference for total gravitational energy

1999-03-10

arxiv.org/abs/gr-qc/9903038v1

Phys.Rev. D60 (1999) 104034

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

latex, 7 pages, no figures. Uses an amstex symbol

Scientific paper

10.1103/PhysRevD.60.104034

We give an explicit expression for gravitational energy, written solely in terms of physical spacetime geometry, which in suitable limits agrees with the total Arnowitt-Deser-Misner and Trautman-Bondi-Sachs energies for asymptotically flat spacetimes and with the Abbot-Deser energy for asymptotically anti-de Sitter spacetimes. Our expression is a boundary value of the standard gravitational Hamiltonian. Moreover, although it stands alone as such, we derive the expression by picking the zero-point of energy via a ``lightcone reference.''

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