| rdfs:comment
| - The Alcubierre metric, also known as the Alcubierre drive or warp drive, is a speculative mathematical model of a spacetime exhibiting some features reminiscent of the fictional faster than the speed of light warp drive from Star Trek; hence the name. The Alcubierre Drive is often called a 'solution' of Einstein's field equations in general relativity, but this is inaccurate; see Alcubierre metric.
- The Alcubierre drive, or warp drive, works by expanding space behind the spacecraft and contracting space in front of the spacecraft without distorting spacetime in the bubble occupied by the spacecraft. This causes no acceleration g-forces, it is not limited by the light speed limitation since it is not propelled by momentum, and it does not cause any relativistic time effects such as time dilation or, when travelling faster than the speed of light, backward time travel.
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| abstract
| - The Alcubierre drive, or warp drive, works by expanding space behind the spacecraft and contracting space in front of the spacecraft without distorting spacetime in the bubble occupied by the spacecraft. This causes no acceleration g-forces, it is not limited by the light speed limitation since it is not propelled by momentum, and it does not cause any relativistic time effects such as time dilation or, when travelling faster than the speed of light, backward time travel. There is a good reason not to redirect the whole warp drive page to Alcubierre drive: Alcubierres original paper assumed absurdly large requirements of negative energy. One possible, more efficient warp drive is described in manipulated spacetimes. There is also an experiment on the concept, see Warp drive experiment.
- The Alcubierre metric, also known as the Alcubierre drive or warp drive, is a speculative mathematical model of a spacetime exhibiting some features reminiscent of the fictional faster than the speed of light warp drive from Star Trek; hence the name. The Alcubierre Drive is often called a 'solution' of Einstein's field equations in general relativity, but this is inaccurate; see Alcubierre metric. The physicist Miguel Alcubierre proposed a method of stretching space in a wave, causing the space "ahead" of a spacecraft to contract along the axis the spacecraft wishes to travel in and the space "behind" it to expand. The ship would ride this wave inside a region, known as a "warp bubble", of flat space. Since the ship is not actually moving within this bubble, but rather being carried along as the region itself moves, conventional relativistic effects do not apply. There is no known way to induce such a wave, however, or to leave it once started; thus, the Alcubierre drive remains a theoretical concept at this time. __TOC__
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