Meaning of the wave function.

@article{Aharonov1993MeaningOT,
  title={Meaning of the wave function.},
  author={Aharonov and Anandan and Vaidman},
  journal={Physical review. A, Atomic, molecular, and optical physics},
  year={1993},
  volume={47 6},
  pages={
          4616-4626
        }
}
  • Aharonov, Anandan, Vaidman
  • Published 1 June 1993
  • Physics
  • Physical review. A, Atomic, molecular, and optical physics
So far, the wave function has been interpreted as a probability amplitude, which is given physical meaning by ensemble averages of a large number of identical systems at a given time. We give an alternative interpretation of the wave function for a single system by means of a measurement which lasts a long time. This is a measurement on a single quantum system which determines the expectation values of (not necessarily commuting) observables while the wave function is protected from collapsing… 

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