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@inproceedings{Busch1996InsolubilityOT, title={Insolubility of the Quantum Measurement Problem for Unsharp Observables}, author={Paul Busch and Abner Shimony}, year={1996} }

- Published 1996

The quantum mechanical measurement problem is the difficulty of dealing with the indefiniteness of the pointer observable at the conclusion of a measurement process governed by unitary quantum dynamics. There has been hope to solve this problem by eliminating idealizations from the characterization of measurement. We state and prove two ‘insolubility theorems’ that disappoint this hope. In both the initial state of the apparatus is taken to be mixed rather than pure, and the correlation of the… CONTINUE READING