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W as the Edge of a Wedge: Bell Correlations via Constrained Colliders

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arxiv 2404.13928 v3 pith:E6EGKSJJ submitted 2024-04-22 quant-ph physics.hist-ph

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keywords bellargumentcollidercorrelationsspecialarguesartefactarxiv
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In previous work with Ken Wharton, it was proposed that Bell correlations are a special sort of selection artefact, explained by a combination of (i) collider bias and (ii) a boundary constraint on the collider variable. This requires no direct causal influence outside lightcones, and may hence offer a new way to reconcile Bell nonlocality and relativity. This piece outlines a new argument for the proposal. It explains how it is valid for a special class of ('W-shaped') Bell experiments involving delayed-choice entanglement swapping, and argues that it can be extended to the general ('V-shaped') case. A detailed version of the argument is now available in arXiv:2406.04571 [quant-ph].

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  1. Taming Entanglement

    quant-ph 2025-07 conditional novelty 5.0 of 10

    EPR and Bell correlations are presented as selection artifacts: preparing the initial quantum state preselects a subensemble of a larger uncorrelated ensemble of possible histories, and the low-entropy past supplies t...

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