We beam me up Scotty is right out, This is arguably the worst explained and most intensely interesting area of Physics. It is not that hard to produce 8 entangled photons. I am actually skeptical about quantum cryptography from an ethic point of view in that secrets usually means someone is not meant to know something which is such a very human thing to do. MP4 recording     MP3 recording -- -- Your browser does not support the audio element.