Boundary sources in the Doran - Lobo - Crawford spacetime
arXiv:hep-th/0703168 · doi:10.2478/s11534-008-0010-8
Abstract
We take a null hypersurface (the causal horizon) generated by a congruence of null geodesics as the boundary of the Doran-Lobo-Crawford spacetime, to be the place where the Brown-York quasilocal energy is located. The components of the outer and inner stress tensors are computed and shown to depend on time and on the impact parameter of the test particle trajectory. The surface energy density on the boundary is given by the same expression as that obtained previously for the energy stored on a Rindler horizon.
4 pages, title changed, no figures, minor text changes