Sorry, no warp drive

Star Treck-esque warp drive – Alcubierre Drive was a mathematical curiosity in the General Relativity Theory, which allowed for faster than light travel inside of the bubble of warped space-time. Of cause it had some problem, like that bubble of space-time could have been created only if some matter was already moving faster than light, and it required exotic matter, and it required three solar masses to transport a single atom. Now it looks like quantum mechanics finally put it out of misery. Exploring mechanism of creaton of warp bubble out of the flat space-tiem , using semiclassical approach Spanish-Italian team shown that energy of the front edge of the warp bubble would grow exponentially with time, which mean that warp drive would be unstable.
Via Slashdot