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arXiv · 1909.05206

Nonclassical joint distributions and Bell measurements

Elisa Masa·Laura Ares·Alfredo Luis
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Abstract

Derivation and experimental violation of Bell-like inequalities involve the measurement of in-compatible observables. Simple complementarity forbids the existence of such joint probabilitydistribution. Moreover, the measurement of incompatible observables requires different experimen-tal procedures, which no necessarily must share a common joint statistics. In this work, we avoidthese difficulties by proposing a joint simultaneous measurement experiment. We can obtain theexact individual statistics of all the observables involved in the Bell inequalities after a suitable datainversion. A lack of positivity or any other pathology of the so retrieved joint distribution is then asignature of nonclassical behavior.

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Elisa Masa, Laura Ares, Alfredo Luis. 2020-06-17. Nonclassical joint distributions and Bell measurements. https://doi.org/10.1016/j.physleta.2020.126416

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