Choice of Consistent Family, and Quantum Incompatibility

  title={Choice of Consistent Family, and Quantum Incompatibility},
  author={Robert B. Griffiths},
  journal={Physical Review A},
  • R. Griffiths
  • Published 14 August 1997
  • Physics
  • Physical Review A
In consistent-history quantum theory, a description of the time development of a quantum system requires choosing a framework or consistent family, and then calculating probabilities for the different histories that it contains. It is argued that the framework is chosen by the physicist constructing a description of a quantum system on the basis of questions he wishes to address, in a manner analogous to choosing a coarse-graining of the phase space in classical statistical mechanics. The… Expand

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