LETTER TO THE EDITOR: The warp drive: hyper-fast travel within general relativity

  title={LETTER TO THE EDITOR: The warp drive: hyper-fast travel within general relativity},
  author={Miguel Alcubierre},
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 ction… Expand

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