Comments by "Kevin Street" (@Kevin_Street) on "Do We Need a Quantum Internet?" video.

  1. Thank you for this video! It really makes you think. I confess I don't understand how a quantum internet would actually work. In the regular Internet photons reflect through a fiber optic strand or electrons travel through a wire, which makes information go from point A to point B, but the photons or electrons going in at A are never the same photons or electrons that come out at B. They're all identical anyway and it's just their timing that encodes the information. But for a quantum internet the particle going in at A would have to be the same exact particle coming out at B, because if it was copied anywhere along the way the superposition would collapse. How in the world could the scientists make this physically possible over distances of hundreds or thousands of kilometres? I must be misunderstanding something.
    3