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Title:
LETTER TO THE EDITOR: The warp drive: hyper-fast travel within general relativity
Authors:
Alcubierre, Miguel
Affiliation:
AA(Department of Physics and Astronomy, University of Wales, College of Cardiff, PO Box 913, Cardiff CF1 3YB, UK)
Publication:
Classical and Quantum Gravity, Volume 11, Issue 5, pp. L73-L77 (1994).
Publication Date:
05/1994
Origin:
IOP
DOI:
10.1088/0264-9381/11/5/001
Bibliographic Code:
1994CQGra..11L..73A

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.
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