Description
The Alcubierre drive, Alcubierre warp drive, or Alcubierre metric (referring to metric tensor), is a speculative warp drive idea based on a solution of Einstein’s field equations in general relativity as proposed by theoretical physicist Miguel Alcubierre during his PhD study at the University of Wales, Cardiff, by which a spacecraft could achieve apparent faster-than-light travel if a configurable energy-density field lower than that of vacuum (that is, negative mass) could be created.