Is the gravitational action additive?
General Relativity and Quantum Cosmology
2009-10-22 v2
Abstract
The gravitational action is not always additive in the usual sense. We provide a general prescription for the change in action that results when different portions of the boundary of a spacetime are topologically identified. We discuss possible implications for the superposition law of quantum gravity. We present a definition of `generalized additivity' which does hold for arbitrary spacetime composition.
Keywords
Cite
@article{arxiv.gr-qc/9403018,
title = {Is the gravitational action additive?},
author = {Dieter Brill and Geoff Hayward},
journal= {arXiv preprint arXiv:gr-qc/9403018},
year = {2009}
}
Comments
20 pages LaTeX file, report numbers UMD-PP 94-100 and Alberta Thy 10-94