The gravitational Hamiltonian in the presence of non-orthogonal boundaries
- 1 October 1996
- journal article
- Published by IOP Publishing in Classical and Quantum Gravity
- Vol. 13 (10) , 2735-2752
- https://doi.org/10.1088/0264-9381/13/10/012
Abstract
This paper generalizes earlier work on Hamiltonian boundary terms by omitting the requirement that the spacelike hypersurfaces intersect the timelike boundary 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.Keywords
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