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by Filligree
3225 days ago
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Depends on your model of quantum physics. In none of them can information travel faster than light, but that isn't a satisfactory answer, since one half of an entangled pair still has to "know" what happens to the other in order to give the right result from measurements, even though that doesn't let you send information. In hidden-variable models, you can argue that the experiment outcome is defined "up-front". In the many-worlds model, both sides have both outcomes but the inconsistent ones "cancel out" as they meet, and pilot-wave interpretations are just many-worlds with one configuration picked out as "real". But in most of the rest, yes, something travels faster than light. That's a common argument against e.g. collapse interpretations. |
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