1994/11/30 by Chiang-Mei Chen, James M. Nester, Roh-Suan Tung +1 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Classical mechanics #Cosmology and Gravitation Theories #Covariant transformation #Energy–momentum relation #General relativity #Geometry #Hamiltonian (control theory) #Mathematical physics #Noncommutative and Quantum Gravity Theories #Physics #Spinor #Symplectic geometry #Theoretical physics #gr-qc
paper · pdf · doi:10.1016/0375-9601(95)92844-t
published as Phys.Lett. A203 (1995) 5-11 · 10 pages, latex (with elsart.sty), revised text with same results, to appear in Phys.Lett.A
arxiv created 1995/05/25 · openalex publication_date 1995/07/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.