Abstract
The concepts of joint probability as implied by the Copenhagen and realist interpretations of quantum mechanics are examined in relation to (a) the rules for manipulation of probabilistic quantities, and (b) the role of the Bell inequalities in assessing the completeness of standard quantum theory. Proponents of completeness of the Copenhagen interpretation are required to accept a modification of the classical laws of probability to provide a mechanism for complementarity. A new formulation of the locality postulate is given, not involving factorizability or conditional probabilities, which clarifies the role of locality in the derivation of the Bell inequalities.
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Hall, M.J.W. Quantum mechanics and the concept of joint probability. Found Phys 19, 189–207 (1989). https://doi.org/10.1007/BF00734525
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DOI: https://doi.org/10.1007/BF00734525