Correlation between Measurements in Quantum Theory

  title={Correlation between Measurements in Quantum Theory},
  author={Henry Margenau and Robert Nyden Hill},
  journal={Progress of Theoretical Physics},
Extension of the postulational basis of quantum theory by introducing correlations between the results of measurements, leads to negative joint probabilities for otherwise meaningful sets of measured values. Since the attempt made is probably the only one compatible with the theory of random variables, and is incompatible with the structure of Hilbert space, it is concluded that correlations are absent. This result, though it is tantamount to a denlal of von Neumann's projection postulate and… 

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