Miguel alcubierre creador metrica alcubierre warp

Since those solutions are metric tensors , the Alcubierre drive is also referred to as Alcubierre metric. 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 more quickly than light would in normal space without breaking any physical laws.

Although the metric proposed by Alcubierre is consistent with the Einstein field equations, construction of such a drive is not necessarily possible. The proposed mechanism of the Alcubierre drive implies a negative energy density and therefore requires exotic matter or manipulation of dark energy. At the close of his original article, [ 5 ] however, Alcubierre argued following an argument developed by physicists analyzing traversable wormholes [ 6 ] [ 7 ] 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 Einstein's equations, general relativity does not incorporate quantum mechanics. Some physicists have presented arguments to suggest that a theory of quantum gravity which would incorporate both theories would eliminate those solutions in general relativity that allow for backward time travel see the chronology protection conjecture and thus make the Alcubierre drive invalid.

In , Miguel Alcubierre proposed a method for changing the geometry of space by creating a wave that would cause the fabric of space ahead of a spacecraft to contract and the space behind it to expand. The local velocity relative to the deformed spacetime would be subluminal, but the speed at which a spacecraft could move would be superluminal, thereby rendering possible interstellar flight, such as a visit to Proxima Centauri within a few days.

The Alcubierre metric defines the warp-drive spacetime. It is a Lorentzian manifold that, if interpreted in the context of general relativity , allows a warp bubble to appear in previously flat spacetime and move away at effectively faster-than-light speed.

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The interior of the bubble is an inertial reference frame and inhabitants experience no proper acceleration. This method of transport does not involve objects in motion at faster-than-light speeds with respect to the contents of the warp bubble; that is, a light beam within the warp bubble would still always move more quickly than the ship.

Because objects within the bubble are not moving locally more quickly than light, the mathematical formulation of the Alcubierre metric is consistent with the conventional claims of the laws of relativity namely, that an object with mass cannot attain or exceed the speed of light and conventional relativistic effects such as time dilation would not apply as they would with conventional motion at near-light speeds.

In his metric, spacetime contracts towards the prow of the ship and expands in the direction perpendicular to the motion, meaning that the bubble actually "slides" through space, roughly speaking by "pushing space aside".