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I'm not questioning the last statement above, but I'm having trouble seeing how this beats the bound of the uncertainty principle, or even relates to the uncertainty principle. As I understood it the uncertainty principle gives a lower bound on the product of the standard deviation of two observables -- it limits how well you can SIMULTANEOUSLY know the value of both observables. In this case, all I see is Bob being able to determine the value of one observable, not two.

Anyone know why they are saying that Bob can beat the bound of the uncertainty principle. An example using spin entangled electrons might be good if it is sufficient. Are they saying Bob can simultaneously determine the spin about two different axes? All I see is him being able to determine the spin about one or the other.