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- Alcubierre_drive abstract "The Alcubierre drive or Alcubierre metric (referring to metric tensor) is a speculative idea based on a solution of Einstein's field equations in general relativity as proposed by theoretical physicist Miguel Alcubierre, by which a spacecraft could achieve faster-than-light travel if a configurable energy-density field lower than that of vacuum (i.e. negative mass) could be created. Rather than exceeding the speed of light within its local frame of reference, a spacecraft would traverse distances by contracting space in front of it and expanding space behind it, resulting in effective faster-than-light travel.Objects cannot accelerate to the speed of light within normal spacetime; instead, the Alcubierre drive shifts space around an object so that the object would arrive at its destination faster than light would in normal space. Although the metric proposed by Alcubierre is mathematically valid in that it is consistent with the Einstein field equations, it may not be physically meaningful or indicate that such a drive could be constructed. The proposed mechanism of the Alcubierre drive implies a negative energy density and therefore requires exotic matter, so if exotic matter with the correct properties does not exist then it could not be constructed. However, at the close of his original paper Alcubierre argued (following an argument developed by physicists analyzing traversable wormholes) that the Casimir vacuum between parallel plates could fulfill the negative-energy requirement for the Alcubierre drive. Another possible issue is that although the Alcubierre metric is consistent with general relativity, general relativity does not incorporate quantum mechanics, and some physicists have presented arguments to suggest that a theory of quantum gravity which merged the two theories would eliminate those solutions in general relativity which allow for backwards time travel (see the chronology protection conjecture), of which the Alcubierre drive is one.".
- Alcubierre_drive thumbnail Alcubierre.png?width=300.
- Alcubierre_drive wikiPageExternalLink 0107097.
- Alcubierre_drive wikiPageExternalLink 9906050.
- Alcubierre_drive wikiPageExternalLink ext-2004-110.pdf.
- Alcubierre_drive wikiPageExternalLink PhysRevD.62.044005.
- Alcubierre_drive wikiPageExternalLink WarpDrive.pdf.
- Alcubierre_drive wikiPageExternalLink warp.
- Alcubierre_drive wikiPageExternalLink 09warp.html.
- Alcubierre_drive wikiPageExternalLink seti.pdf.
- Alcubierre_drive wikiPageExternalLink ideachev_prt.htm.
- Alcubierre_drive wikiPageExternalLink MatterOfMatter-revised-final.pdf.
- Alcubierre_drive wikiPageExternalLink watch?v=ynxD-BaDxRk.
- Alcubierre_drive wikiPageID "37856".
- Alcubierre_drive wikiPageRevisionID "606806077".
- Alcubierre_drive hasPhotoCollection Alcubierre_drive.
- Alcubierre_drive subject Category:1994_introductions.
- Alcubierre_drive subject Category:Hypothetical_technology.
- Alcubierre_drive subject Category:Interstellar_travel.
- Alcubierre_drive subject Category:Lorentzian_manifolds.
- Alcubierre_drive subject Category:Science_fiction_themes.
- Alcubierre_drive subject Category:Warp_drive_theory.
- Alcubierre_drive type Artifact100021939.
- Alcubierre_drive type Conduit103089014.
- Alcubierre_drive type LorentzianManifolds.
- Alcubierre_drive type Manifold103717750.
- Alcubierre_drive type Object100002684.
- Alcubierre_drive type Passage103895293.
- Alcubierre_drive type PhysicalEntity100001930.
- Alcubierre_drive type Pipe103944672.
- Alcubierre_drive type Tube104493505.
- Alcubierre_drive type Way104564698.
- Alcubierre_drive type Whole100003553.
- Alcubierre_drive type YagoGeoEntity.
- Alcubierre_drive type YagoPermanentlyLocatedEntity.
- Alcubierre_drive comment "The Alcubierre drive or Alcubierre metric (referring to metric tensor) is a speculative idea based on a solution of Einstein's field equations in general relativity as proposed by theoretical physicist Miguel Alcubierre, by which a spacecraft could achieve faster-than-light travel if a configurable energy-density field lower than that of vacuum (i.e. negative mass) could be created.".
- Alcubierre_drive label "Alcubierre drive".
- Alcubierre_drive label "Métrica de Alcubierre".
- Alcubierre_drive label "Métrique d'Alcubierre".
- Alcubierre_drive label "Napęd Alcubierre'a".
- Alcubierre_drive label "Propulsão Alcubierre".
- Alcubierre_drive label "Пузырь Алькубьерре".
- Alcubierre_drive label "دفع ألكبيار".
- Alcubierre_drive label "アルクビエレ・ドライブ".
- Alcubierre_drive label "阿庫別瑞引擎".
- Alcubierre_drive sameAs Métrica_de_Alcubierre.
- Alcubierre_drive sameAs Métrique_d'Alcubierre.
- Alcubierre_drive sameAs アルクビエレ・ドライブ.
- Alcubierre_drive sameAs Napęd_Alcubierre'a.
- Alcubierre_drive sameAs Propulsão_Alcubierre.
- Alcubierre_drive sameAs m.09fsy.
- Alcubierre_drive sameAs Q169890.
- Alcubierre_drive sameAs Q169890.
- Alcubierre_drive sameAs Alcubierre_drive.
- Alcubierre_drive wasDerivedFrom Alcubierre_drive?oldid=606806077.
- Alcubierre_drive depiction Alcubierre.png.
- Alcubierre_drive isPrimaryTopicOf Alcubierre_drive.