General relativity on a null surface: Hamiltonian formulation in the teleparallel geometry

Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology

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15 pages, Latex, no figures, to appear in the Gen. Rel. Grav

Scientific paper

The Hamiltonian formulation of general relativity on a null surface is established in the teleparallel geometry. No particular gauge conditons on the tetrads are imposed, such as the time gauge condition. By means of a 3+1 decomposition the resulting Hamiltonian arises as a completely constrained system. However, it is structurally different from the the standard Arnowitt-Deser-Misner (ADM) type formulation. In this geometrical framework the basic field quantities are tetrads that transform under the global SO(3,1) and the torsion tensor.

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