Bell nonlocality between sequential pairs of observers
Ad\'an Cabello
TL;DR
This paper demonstrates that sequences of multiple observers can sequentially violate Bell inequalities, and proposes an experiment with two Alices and two Bobs to observe this phenomenon.
Contribution
It introduces a method for arbitrarily long sequences of observers to violate Bell inequalities and proposes a feasible experiment to demonstrate this effect.
Findings
Sequences of observers can violate Bell inequalities repeatedly.
An experimental setup with two Alices and two Bobs is feasible.
Sequential Bell violations can be observed with current technology.
Abstract
We show that it is possible to have arbitrarily long sequences of Alices and Bobs so every (Alice, Bob) pair violates a Bell inequality. We propose an experiment to observe this effect with two Alices and two Bobs.
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Taxonomy
TopicsQuantum Mechanics and Applications · Quantum Information and Cryptography · Nonlinear Dynamics and Pattern Formation