The Gravitational Hamiltonian in the Presence of Non-Orthogonal Boundaries

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dc.creatorHawking, S. W.
dc.creatorHunter, C. J.
dc.date1996-03-25
dc.date1996-08-27
dc.date.accessioned2026-07-07T10:31:57Z
dc.date.available2026-07-07T10:31:57Z
dc.descriptionThis paper generalizes earlier work on Hamiltonian boundary terms by omitting the requirement that the spacelike hypersurfaces $Σ_t$ intersect the timelike boundary $\cal B$ orthogonally. The expressions for the action and Hamiltonian are calculated and the required subtraction of a background contribution is discussed. The new features of a Hamiltonian formulation with non-orthogonal boundaries are then illustrated in two examples.
dc.description23 pages, 1 figure, LaTeX. The action is altered to include a corner term which results in a different value for the non-orthogonal term. An additional appendix with Euclidean results is included. To appear in Class. Quant. Grav
dc.identifierhttps://arxiv.org/abs/gr-qc/9603050
dc.identifierhttp://arxiv.org/abs/gr-qc/9603050
dc.identifierClass.Quant.Grav.13:2735-2752,1996
dc.identifierdoi:10.1088/0264-9381/13/10/012
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178593
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleThe Gravitational Hamiltonian in the Presence of Non-Orthogonal Boundaries
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