Talk:Aspect's experiment

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	This article was accepted from this draft on 24 September 2018 by reviewer GeoffreyT2000 (talk · contribs).

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Physics Mid‑importance

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Conclusions

This article conclusion seems cumbersome and does not seem to address loopholes or other interpretations that might be relevant. ReyHahn (talk) 11:34, 15 October 2022 (UTC)[reply]

Relativistic causality

The final paragraph has no references and makes it look as if all physicists believe the same things:

"No physicist believes the results of the EPR experiment in general and of Aspect's experiment in particular—in perfect agreement with the Copenhagen interpretation of quantum mechanics—challenge, in any way whatsoever, the relativity principle according to which no form of energy (matter or force), and therefore no usable information, can travel faster than the speed of light nor does it, as a consequence, challenge the derived relativist causality principle. It can easily be proven that quantum entanglement cannot be used to instantaneously transmit information from one space-time point to the other. The results measured on the first particle are random; the state alterations on the other particle induced by these measurements—as instantaneous as they may be according to the Copenhagen interpretation of quantum mechanics and Aspect's experiment's results—lead to measurement results relative to the second particle which are seemingly just as random: no usable information can be separately obtained upon measuring, and the correlations remain undetectable as long as the two series' results are not compared. This kind of experiment demonstrates the unavoidable need for a "classical" signal in the relativistic sense in order to transmit the information necessary for the detection of these correlations. Without this signal, nothing can be transmitted. It determines the speed of the transmission of information which reaffirms the fundamental principle of relativity. As a result, the relativist causality principle is perfectly compatible with the EPR experiments results." 128.227.195.69 (talk) 18:26, 12 July 2023 (UTC)[reply]