Bells Theorem: The Quantum Venn Diagram Paradox


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This video is about Bells Theorem, one of the most fascinating results in 20th century physics. Even though Albert Einstein (together with collaborators in the EPR Paradox paper) wanted to show that quantum mechanics must be incomplete because it was nonlocal (he didnt like «spooky action at a distance»), John Bell managed to prove that any local real hidden variable theory would have to satisfy certain simple statistical properties that quantum mechanical experiments (and the theory that describes them) violate. Since then, GHZ and others have managed to extend the theoretical work, and Alain Aspect performed the first Bell test experiment in the late 1980s.

Thanks to Vince Rubinetti for the music: soundcloud.com/vincerubinetti/one-two-zeta

And thanks to Evan Miyazono, Aatish Bhatia, and Jasper Palfree for discussions and camaraderie during some of the inception of this video.

REFERENCES:

John Bells Original Paper: inspirehep.net/record/31657/files/vol1p195-200_001.pdf

Quantum Theory and Reality: www.scientificamerican.com/media/pdf/197911_0158.pdf

«What Bell Did» By Tim Maudlin: arxiv.org/pdf/1408.1826

Bells Theorem on Wikipedia: en.wikipedia.org/wiki/Bell's_theorem

2015 experimental confirmation that QM violates Bells theorem: arxiv.org/pdf/1508.05949.pdf
journals.aps.org/prl/abstract/10.1103/PhysRevLett.115.250402

Bells Theorem without Inequalities (GHZ): dx.doi.org/10.1119/1.16243

Kochen-Specker Theorem: en.wikipedia.org/wiki/Kochen–Specker_theorem

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