Nonclassical joint distributions and Bell measurements
Quantum Physics
2020-06-18 v2
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.
Cite
@article{arxiv.1909.05206,
title = {Nonclassical joint distributions and Bell measurements},
author = {Elisa Masa and Laura Ares and Alfredo Luis},
journal= {arXiv preprint arXiv:1909.05206},
year = {2020}
}