gill1109 wrote:Gordon, if Bell is wrong, you should be able to win the quantum Randi challenge http://www.science20.com/alpha_meme/official_quantum_randi_challenge-80168. Or mine http://arxiv.org/pdf/quant-ph/0110137v4.pdf. That will make you famous, and destroy Bell for ever.
Why has no-one been able to do so? Who will be first?
Ben6993 wrote:...I have heard Leonard Susskind in an online lecture say that he has done the experiment himself (as long ago as 1967) showing 4pi rotational periodicity....
Ben6993 wrote:Hi Gordon.
Some posts back, you mentioned Pisa and Paris to me. Coincidentally, last month I was in Pisa for a break and I flew over Paris to get there. Very nice, too! And when I was over Paris I was not in Pisa and when I was in Pisa I was not over Paris.
I cannot see why you deny the use of A(λ)squared = 1 in the formula, as A(λParis)squared = 1 and A(λPisa)squared = 1. The fact that maybe A(λparis) x A(λPisa) = -1 is wholly irrelevant to the integration.
I agree with Michel's point in his latest post. I think that he stated that there was no error in the formula so long as one realises that the range of λs is over all possible values. This would match Michel's "strong" condition. And if you take that over an infinity of all possible λ values you have Richard's population case.
As Michel often notes, no experiment can sample over an infinity of λ values, nor get anywhere near a matching of the λ values in the run for Alice and the run for Bob. So experiments necessarily only use a "weak" condition. A weak condition is not matching the conditions of the Bell formula and so can break the Bell limits. And that can also be described as experiments use samples rather than a population, also allowing a breaking of Bell limits.
But all that is in flatland where rotations have periodicity 2pi. Joy is making use of a rotational periodicity of 4pi, which Richard wrote that is something with which most experimenters would disagree. That is strange as I have heard Leonard Susskind in an online lecture say that he has done the experiment himself (as long ago as 1967) showing 4pi rotational periodicity.
This is a just an analogy, but may correspond to your Paris/Pisa explanation. If A(λPisa) = -1 or +1 because space is 'double covered' ie 4pi periodicity rather than 2pi periodicity. Then it may be possible for A(λPisa)squared to be -1*1 = -1. That would ruin the integration. However, if one believes in a double cover of space then one would not be using flatland algebra in the first place but start again from scratch using geometric algebra.
Gordon Watson wrote:I'm an engineer who claims that quantum physics is true (in its calculations) and that quantum entanglement experiments can be explained by a classically realistic and locally causal model.
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Heinera wrote:And we are just mathematicians and statisticians humbly suggesting that you actually produce such a model. It would make further discussions much more fruitful.
Heinera wrote:Yes, both mathematicians and statisticians understand that Pearle's model already exists, and has been doing so for about 40 years. And they also understand that this model is in no way in conflict with Bell's theorem.
Joy Christian wrote:Heinera wrote:Yes, both mathematicians and statisticians understand that Pearle's model already exists, and has been doing so for about 40 years. And they also understand that this model is in no way in conflict with Bell's theorem.
Evidently mathematicians and statisticians do not seem to understand either Pearle's model based on data rejection or my model based on the 3-sphere topology.
Heinera wrote:Joy Christian wrote:Heinera wrote:Yes, both mathematicians and statisticians understand that Pearle's model already exists, and has been doing so for about 40 years. And they also understand that this model is in no way in conflict with Bell's theorem.
Evidently mathematicians and statisticians do not seem to understand either Pearle's model based on data rejection or my model based on the 3-sphere topology.
Oh, we have no trouble with the first one. But you are certainly correct about us not understanding the second one...
Joy Christian wrote:Ignorance is indeed bliss...
gill1109 wrote:minkwe wrote:One of the other posters have suggested that we can assume that the three setsare the same since according to him "Nature is the one picking lambda, and we can assume that nature picks the same set of lambda everytime". Of course, such an assumption will allow the derivation to proceed but is such an assumption reasonable? Definitely not. In any case, even if you disagree that such an assumption is silly, it is one more candidate for rejection when the inequality so-derived is violated. There is nothing about local hidden variable theories that implies nature must pick the exact same set of lambdas every time -- none whatsoever.
Bell's derivation indeed assumes that Nature is picking from the same set of lambda every time. Not only does he assume that the three sets are the same, he also assumes that the probability distribution rho(lambda) is the same too.
So if you you want to violate the inequality by a local hidden variables theory, you have to change the sets, or at least, change the distribution.
Ben6993 wrote:As Michel often notes, no experiment can sample over an infinity of λ values, nor get anywhere near a matching of the λ values in the run for Alice and the run for Bob. So experiments necessarily only use a "weak" condition. A weak condition is not matching the conditions of the Bell formula and so can break the Bell limits. And that can also be described as experiments use samples rather than a population, also allowing a breaking of Bell limits.
But all that is in flatland where rotations have periodicity 2pi.
minkwe wrote:Ben6993 wrote:But all that is in flatland where rotations have periodicity 2pi.
The above does not care about flatness of the land, it is algebra. The main thing to realize is that once it is clearly understood that there is no discrepancy between LHV and QM, we can then focus on finding LHV which reproduce the QM correlations. This is where Joy's model comes in IMHO. The double cover is not very relevant to the discussion of the derivation of the inequalities themselves and the undeniable conclusion is that if the inequalities are correctly derived, then they are irrelevant to EPRB, and if the inequalities are relevant to EPRB then they are incorrectly derived. LHV models do not have to care about the inequalities, they just have to reproduce the QM correlations.
Gordon Watson wrote:gill1109 wrote:Gordon, if Bell is wrong, you should be able to win the quantum Randi challenge http://www.science20.com/alpha_meme/official_quantum_randi_challenge-80168. Or mine http://arxiv.org/pdf/quant-ph/0110137v4.pdf. That will make you famous, and destroy Bell for ever.
Why has no-one been able to do so? Who will be first?
Richard,
IF Bell is wrong??
...
Which brings us nicely to the double-speak in the QRC challenge:
"The Quantum Randi Challenge, hence forth QRC, challenges any pseudo-scientist who claims that quantum physics is not true and that quantum entanglement experiments can be explained by a classically realistic and locally causal model."
I'm an engineer who claims that quantum physics is true (in its calculations) and that quantum entanglement experiments can be explained by a classically realistic and locally causal model.
Am I allowed to enter? I'm guessing you have some escape-clauses re the direct-quotation above?
Further: Re your challenge: Since Bell IS wrong, what stops you winning QRC?
This is a serious question. So maybe you'll be more comfortable telling me why Bell is right and what, exactly, he is right about?
PS: Truly, I have no clue as to where you think my essay is flawed.
How about referring to specific paragraphs and equations, please? They are numbered for that very purpose.
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minkwe wrote:If you want to model the EPRB experiment or simulate it, you MUST do it on disjoint sets (aka different set of lambda every time, just like the real experiment). Some people have a very hard time understanding this. They point of QRC and all other fake challenges which involve calculating nonsensical correlations on the same set thinking they are doing anything relevant to EPRB. I laugh everytime I hear someone say, "if you believe Bell is wrong, win the QRC". It is similar to saying, "If Bell's inequality does not apply to disjoint sets of actual experiments, then prove that Bell's inequality does not apply to the single set on which it is derived, by winning the QRC". Disingenuous to say the least. QRC is a silly rigged challenge with no relevance to EPRB or QM.
gill1109 wrote:The Quantum Randi Challenge, hence forth QRC, challenges any scientist who claims that quantum entanglement experiments can be explained by a classically realistic and locally causal model.
...
But in the meantime, I think it is a good idea to look for common ground. Let's study this issues in a simple, concrete, context. Simple computer experiments which we both in principle could do, which we both can understand.
Can you win the QRC? Or can you win my challenge to Accardi?
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