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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.
A warp drive or a drive enabling space warp is a fictional superluminal (faster than the speed of light) spacecraft propulsion system in many science fiction works, most notably Star Trek, [1] and a subject of ongoing physics research.
In the context of this article, "faster-than-light" means the transmission of information or matter faster than c, a constant equal to the speed of light in vacuum, which is 299,792,458 m/s (by definition of the metre) [3] or about 186,282.397 miles per second. This is not quite the same as traveling faster than light, since:
In September 2011, it was reported that a tau neutrino had traveled faster than the speed of light; however, later updates from CERN on the OPERA experiment indicate that the faster-than-light readings were due to a faulty element of the experiment's fibre optic timing system. [13]
In 1907, Einstein noted that from the composition law for velocities, one could deduce that there cannot exist an effect that allows faster-than-light signaling. [p 9] [p 10] Einstein imagined a strip of material that allows propagation of signals at the faster-than-light speed of (as viewed from the
Artist rendition of a spaceship entering warp drive. Generic terms for engines enabling science fiction spacecraft propulsion include "space drive" and "star drive". [g] [2]: 198, 216 In 1977 The Visual Encyclopedia of Science Fiction listed the following means of space travel: anti-gravity, [h] atomic (nuclear), bloater, [i] cannon one-shot, [j] Dean drive, [k] faster-than-light (FTL ...
Despite her deepest fears, Joseph came home from his two combat tours at age 22, physically sound. But the demons of his moral injuries followed close behind and eventually closed in on him. It turned out, she realized too late, that coming home was more dangerous than being at war. “It wasn’t Afghanistan where he died,” she reminded me.
The Alcubierre drive uses exotic matter (not to be confused with antimatter) to travel faster than light. While the concept had been out since 2013 the design of IXS Enterprise was popularized in June 2014 after a series of media outlets reported on the conceptual artwork done by Dutch artist Mark Rademaker in collaboration with NASA. [1]