Speed Limits in General Relativity
广义相对论与量子宇宙学
2009-10-31 v1
摘要
Some standard results on the initial value problem of general relativity in matter are reviewed. These results are applied first to show that in a well defined sense, finite perturbations in the gravitational field travel no faster than light, and second to show that it is impossible to construct a warp drive as considered by Alcubierre (1994) in the absence of exotic matter.
引用
@article{arxiv.gr-qc/9812067,
title = {Speed Limits in General Relativity},
author = {Robert J Low},
journal= {arXiv preprint arXiv:gr-qc/9812067},
year = {2009}
}
备注
7 pages; AMS-LaTeX; accepted for publication by Classical and Quantum Gravity