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Partial measurement in the Bohm-Bub hidden-variable theory

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The Bohm-Bub hidden-variable theory is able to predict the results of measuring a quantum system only in the special case where the set of commuting observables being measured is complete. To handle the much more common case where the set is incomplete, Tutsch has proposed a generalization of the Bohm-Bub model. Unfortunately, as we show here, Tutsch's original method does not yield the correct quantum mechanical transition probabilities. On the other hand, Belinfante's modification of Tutsch's method does yield the correct probabilities, and it gives a satisfactory hidden-variable theory of partial measurement for the case where one or more commuting variable(s) are measured at a single space-time point. In the case where the variables are measured at different space-time points, the theory is inadequate, due to the fact that it is not relativistically covariant, and does not take relaxation of the hidden variables into account.

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Christensen, J.P., Mattuck, R.D. Partial measurement in the Bohm-Bub hidden-variable theory. Found Phys 12, 347–361 (1982). https://doi.org/10.1007/BF00726782

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  • Quantum System
  • Correct Quantum
  • Original Method
  • Hide Variable
  • Mechanical Transition