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Quantum Entanglement Partly Demystified

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Abstract

We consider a simple string model to explain and partly demystify the phenomenon of quantum entanglement. The model in question has nothing to do with string theory: it uses macroscopic strings that can be acted upon by Alice and Bob in ways that violate, or fail to violate, in different ways Bell-CHSH inequalities and the no-signaling conditions, also called marginal laws. We present several variants of the model, to address different objections that may arise. This allows us to make fully visible what the quantum formalism already suggests, about the nature of the correlations associated with entangled states, which appear to be created in a contextual manner at each execution of a joint measurement. We also briefly present the hidden measurement interpretation, whose rationale is compatible with the mechanism suggested by our string model, then offer some final thoughts about the possibility that the quantum entanglement phenomenon might affect not only states, but also measurements, and that our physical reality would be predominantly non-spatial in nature.

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Notes

  1. This is roughly the reaction that Bell had, when in the seventies of the last century one of us presented for the first time, at a conference at the CERN, the equivalent ‘vessels of water model’.

  2. To the authors’ knowledge, a macroscopic model with such properties had never been proposed up to now.

  3. Interestingly, Anton Zeilinger, who was recently awarded the Nobel Prize for his experimental work on entanglement, co-authored Rauch’s main experiment [49], as he was one of his students at the time.

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  1. Center Leo Apostel for Interdisciplinary Studies, Brussels Free University, 1050, Brussels, Belgium

    Diederik Aerts & Massimiliano Sassoli de Bianchi

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  1. Diederik Aerts
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Aerts, D., Sassoli de Bianchi, M. Quantum Entanglement Partly Demystified. Int J Theor Phys 63, 87 (2024). https://doi.org/10.1007/s10773-024-05617-8

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