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Well, Here, I Believe We Have Entanglement, Not Superluminality.

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Posted by Alexander on October 11, 2001 23:04:31 UTC

In the example with the coins (and two photons with opposite spin in modern experiments) we have entangled system (one coin in two holes). Information about one part completely defines information about the other part. Therefore no superluminal velocities needed as you correctly pointed at.

Also, because a wave function and a probability is NOT a material object, there is nothing unususl in their instant change ("collapse"). After all, nothing collapses - only our knowledge. And instant change of information does not affect any physical process, thus can not be used to deliver this (or any other) information superluminally.

Indeed, is it possible to make a superluminal communication using "one coin, two hole" device or some similar method?

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