Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1994-11-18
Phys.Lett. A203 (1995) 5-11
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
10 pages, latex (with elsart.sty), revised text with same results, to appear in Phys.Lett.A
Scientific paper
10.1016/0375-9601(95)92844-T
From a covariant Hamiltonian formulation, using symplectic ideas, we obtain covariant quasilocal energy-momentum boundary expressions for general gravity theories. The expressions depend upon which variables are fixed on the boundary, a reference configuration and a displacement vector field. We consider applications to Einstein's theory, black hole thermodynamics and alternate spinor expressions.
Chen Chiang-Mei
Nester James M.
Tung Roh Suan
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