The warp drive: hyper-fast travel within general relativity
General Relativity and Quantum Cosmology
2010-04-06 v1
Abstract
It is shown how, within the framework of general relativity and without the introduction of wormholes, it is possible to modify a spacetime in a way that allows a spaceship to travel with an arbitrarily large speed. By a purely local expansion of spacetime behind the spaceship and an opposite contraction in front of it, motion faster than the speed of light as seen by observers outside the disturbed region is possible. The resulting distortion is reminiscent of the ``warp drive'' of science fiction. However, just as it happens with wormholes, exotic matter will be needed in order to generate a distortion of spacetime like the one discussed here.
Cite
@article{arxiv.gr-qc/0009013,
title = {The warp drive: hyper-fast travel within general relativity},
author = {Miguel Alcubierre},
journal= {arXiv preprint arXiv:gr-qc/0009013},
year = {2010}
}
Comments
10 pages, 1 figure. Not previously available in gr-qc