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Take a transmitter of entangled particles. Assume for the moment that these particles can be directed precisely without disturbance of the entanglement. We then have two receivers an equal distance apart in directions exactly opposite each other with respect to the transmitter. As they both detect the particles they can then tell from their results exactly what the other observer should have detected. This must be wrong somehow because it is off the top of my head.EDIT: You then tell each receiver what states represent true and false, except that it is the opposite way round for each one.
However, people who know much more about this than I do tell me that you can't communicate faster than the speed of light with entangled photons (as much as high-volume stock traders would like to do it!).
Quote from: evan_au on 16/04/2015 22:36:21However, people who know much more about this than I do tell me that you can't communicate faster than the speed of light with entangled photons (as much as high-volume stock traders would like to do it!).who knows it much more? did he told you why? did you asked him?
We look here at a pair of separated but still entangled particles. The correlations between measurement results performed on the particles are nonlocal, which seems to demonstrate the existence of faster than light (FTL) communication between distant objects. The whole phenomenon of quantum nonlocality is so impressive and difficult to accept that it appears to be on the verge of mystical. It has been widely discussed from the early days of QM up to this day. Its most characteristic features have been confirmed in experiments by Aspect et al.