‘Quantum teleportation’ breakthrough by DARPA-funded physicists


Ironically it is RT that has published this article ‘Quantum teleportation’ breakthrough by DARPA-funded physicists

I have read books on quantum entanglement, but I have always had the nagging doubt that there was something about this that was escaping me.

Explanation of the use of quantum entanglement for teleportation

This is the best explanation I have seen. The explanation that accompanies the cartoon is necessary to complete the understanding. It is not until the Alice tells Bob what the state of his photon will be that any real information is passed at a distance. So the secret that Alice tells the Bob is the state of the Bob’s photon. The fact that Bob can verify that what Alice said is true, is the accomplishment in this experiment. Of course, since there were only two choices, the Alice had a 50% chance of being right even if she had not known the correct answer. It would take a significant string of right answers before the level of trust could be established with enough confidence.

By the way, I think some of the details in the cartoon explanation are a little off, but the gist of it is correct.

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