Pseudotensors and quasilocal energy-momentum
General Relativity and Quantum Cosmology
2009-10-31 v2
Abstract
Early energy-momentum investigations for gravitating systems gave reference frame dependent pseudotensors; later the quasilocal idea was developed. Quasilocal energy-momentum can be determined by the Hamiltonian boundary term, which also identifies the variables to be held fixed on the boundary. We show that a pseudotensor corresponds to a Hamiltonian boundary term. Hence they are quasilocal and acceptable; each is the energy-momentum density for a definite physical situation with certain boundary conditions. These conditions are identified for well-known pseudotensors.
Keywords
Cite
@article{arxiv.gr-qc/9809040,
title = {Pseudotensors and quasilocal energy-momentum},
author = {C. C. Chang and J. M. Nester and C. M. Chen},
journal= {arXiv preprint arXiv:gr-qc/9809040},
year = {2009}
}
Comments
LaTeX (REVTex), 4 pages, no figures, revised Title, abstract, introduction and conclusion