The warp drive: hyper-fast travel within general relativity

Details The warp drive: hyper-fast travel within general relativity The warp drive: hyper-fast travel within general relativity

2000-09-05

arxiv.org/abs/gr-qc/0009013v1

Class.Quant.Grav.11:L73-L77,1994

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, 1 figure. Not previously available in gr-qc

Scientific paper

10.1088/0264-9381/11/5/001

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.

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