Strengthening the Bell Theorem: conditions to falsify local realism in an experiment
Marek Zukowski, Dagomir Kaszlikowski, Adam Baturo, Jan-Åke Larsson
Abstract
The two-particle correlation obtained from the quantum state used in the Bell inequality is sinusoidal, but the standard Bell inequality only uses two pairs of settings and not the whole sinusoidal curve. The highest to-date visibility of an explicit model reproducing sinusoidal fringes is 2/pi. We conjecture from a numerical approach presented in this paper that the highest possible visibility for a local hidden variable model reproducing the sinusoidal character of the quantum prediction for the two-particle Bell-type interference phenomena is 1/sqrt2. In addition, the approach can be applied directly to experimental data.
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