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Er. Quantum entanglement is not a faster than light phenomenon. Or, at least, describing it as such is rather pointless. It's no more 'faster than light' than '
by ajkjk 10y ago
Er. Quantum entanglement is not a faster than light phenomenon. Or, at least, describing it as such is rather pointless. It's no more 'faster than light' than 'realizing something about a faraway place' is.
- skygazer 10y agoIsn't collapse of the probability wave instantaneous across the arbitrary distance between entangled particles, from the frame of the measurement, in violation of relativity, and isn't that what Einstein disliked?
- gaze 10y agoThe wave function isn't really this thing that physically exists but is really a data structure which exists only in your head that captures the information you have about a quantum system. So yeah collapse is instantaneous, but that's just because you can update something in your head instantly because you learned something about something that happened far away.
- skygazer 10y agoI don't know that that's true. I'm by no means, even remotely, an expert. But it sounds like you've got a "hidden variables" take on it; that you're suggesting the probability wave is our statistical prediction of a systems state limited by our ignorance, which is what Einstein believed, and has been since contradicted by physical experiment showing violation of Bell's inequality? Am I mistaken? Feel free to correct me.
- gaze 9y agoAh that's not what I'm saying but it's subtle. Access to hidden variables, if they existed, would allow you to predict a measurement outcome. I'm not saying that. I'm saying the wave function is a tool that allows you to write down all the correlations. In other words, the wave function is a tool that allows you to reproduce all the probability distributions