# 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 } }

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…

## 139 Citations

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