Does Bell's Theorem Disprove Quantum Mechanics?

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Discussion Overview

The discussion revolves around Bell's theorem and its implications for quantum mechanics, particularly focusing on the measurement of correlations and the nature of results produced by quantum measurements. Participants explore the theoretical underpinnings of Bell's theorem, engage in mathematical reasoning, and address the validity of certain citations related to the theorem.

Discussion Character

  • Debate/contested
  • Mathematical reasoning

Main Points Raised

  • One participant questions whether quantum mechanics, which provides probabilities, allows for the same results in different correlation measurements as suggested by Bell's theorem.
  • Another participant asserts that the distributions for measurement A are the same and that specific results can be selected afterwards.
  • A participant presents a mathematical argument regarding the rearrangement of data pairs in relation to Bell's theorem, suggesting that such rearrangements lead to contradictions in achieving the expected equivalences.
  • Some participants challenge the appropriateness of citations provided by another participant, stating they do not meet forum guidelines and should be disregarded.

Areas of Agreement / Disagreement

Participants express disagreement regarding the interpretation of Bell's theorem and the validity of certain citations. The discussion remains unresolved, with multiple competing views presented.

Contextual Notes

Some arguments depend on specific assumptions about the nature of quantum measurements and the interpretation of Bell's theorem, which are not universally accepted among participants.

jk22
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Hi all,

in Bell's theorem we consider the measurement of correlation [itex]A\otimes B[/itex] and [itex]A\otimes B'[/itex]

Then the theorem states that the "result" for A in both quantities is the same. But does QM not only gives probabilities of the result, hence the result could be in principle different for the measurement with the A operator in those 2 correlation, so that no factorization is possible for the result of measurement ?
 
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The distributions for A are the same, and you can select measurements with specific results at A afterwards if you like.
 
I thought about selection and rearranging, but I could not achieve to get Bell's theorem : suppose the S value is

S=AB-A1B'+A'B1+A'1B'1

suppose we fix the A datas, since the datas have same length and have the same average, we can rearrange A1 so that A=A1

but if we rearrange A1 we rearranged B' because the datas are in couples (else we change the value of the correlation), now B'1 should be rearranged like B', so that we rearranged A'1

Since A'1=A' we shall rearrange B1, but then B1=B we should rearrange A which contradicts the hypothesis, so we never get AB-AB'+A'B+A'B' with the respective equivalence of the results.
 
jk22 said:
I thought about selection and rearranging, but I could not achieve to get Bell's theorem : suppose the S value is

S=AB-A1B'+A'B1+A'1B'1

suppose we fix the A datas, since the datas have same length and have the same average, we can rearrange A1 so that A=A1

but if we rearrange A1 we rearranged B' because the datas are in couples (else we change the value of the correlation), now B'1 should be rearranged like B', so that we rearranged A'1

Since A'1=A' we shall rearrange B1, but then B1=B we should rearrange A which contradicts the hypothesis, so we never get AB-AB'+A'B+A'B' with the respective equivalence of the results.

You can find similar observations in :
"What's wrong with this rebuttal,"Found. Phys. Lett. 19 (6) 625-629 (2006). http://arxiv.org/abs/quant-ph/0604124 (see section IV)

and
"Bell's inequalities I: An explanation for their experimental violation" Optics Communications 170 (1999) 55-60
http://arxiv.org/abs/quant-ph/0101087
 
Both of the above citations by Bill are inappropriate and should be disregarded. They do not meet forum guidelines.

Bill, please stop now or I will report you for the Nth time. I won't argue with you further on this matter.
 
DrChinese said:
Both of the above citations by Bill are inappropriate and should be disregarded. They do not meet forum guidelines.
This is false.
 
Closed for moderation
 

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