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Entanglement swapping, light cones and elements of reality

A. Broadbent·A. A. Methot
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Abstract

Recently, a number of two-participant all-versus-nothing Bell experiments have been proposed. Here, we give local realistic explanations for these experiments. More precisely, we examine the scenario where a participant swaps his entanglement with two other participants and then is removed from the experiment; we also examine the scenario where two particles are in the same light cone, i.e. belong to a single participant. Our conclusion is that, in both cases, the proposed experiments are not convincing proofs against local realism.

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A. Broadbent, A. A. Methot. 2006-07-20. Entanglement swapping, light cones and elements of reality. https://doi.org/10.1016/j.physleta.2006.12.023

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