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SeventhSigma
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So I understand local realism (the moon is there when we aren't seeing it) and the notion that Bell's Theorem says that if local realism is true, then we could perform experiments that show observation is independent of reality and that we should expect certain probabilities to arise.
But we find that instead the probabilities are more in line with the notion of observation having some impact on the reality of the state and that the correlation between observation and reality is nonzero.
My questions:
1. So what does it mean to say that this rules out *local* hidden variable theories versus, say, a nonlocal one?
2. I assumed EPR Paradox was meant to show that if we had two entangled particles we could theoretically measure one property of one particle and one property of the other particle where these properties are canonically conjugate and somehow violate HUP -- but my understanding on this is shaky. Elaboration?
3. If local hidden variables are effectively ruled out, does this mean that nonlocal hidden variables are the only way to do? Does this mean we have to violate special relativity by assuming superluminal communication?
I feel like there are glaring contradictions here. I have to toss something out the window and I'm not sure what.
But we find that instead the probabilities are more in line with the notion of observation having some impact on the reality of the state and that the correlation between observation and reality is nonzero.
My questions:
1. So what does it mean to say that this rules out *local* hidden variable theories versus, say, a nonlocal one?
2. I assumed EPR Paradox was meant to show that if we had two entangled particles we could theoretically measure one property of one particle and one property of the other particle where these properties are canonically conjugate and somehow violate HUP -- but my understanding on this is shaky. Elaboration?
3. If local hidden variables are effectively ruled out, does this mean that nonlocal hidden variables are the only way to do? Does this mean we have to violate special relativity by assuming superluminal communication?
I feel like there are glaring contradictions here. I have to toss something out the window and I'm not sure what.