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  1. Quantization by parts, self-adjoint extensions, and a novel derivation of the Josephson equation in superconductivity.K. Kong Wan & R. H. Fountain - 1996 - Foundations of Physics 26 (9):1165-1199.
    There has been a lot of interest in generalizing orthodox quantum mechanics to include POV measures as observables, namely as unsharp obserrables. Such POV measures are related to symmetric operators. We have argued recently that only maximal symmetric operators should describe observables.1 This generalization to maximal symmetric operators has many physical applications. One application is in the area of quantization. We shall discuss a scheme, to he called quantization by parts,which can systematically deal with what may be called quantum circuits. (...)
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  • Unitary state preparation, local position measurements, and spin in quantum mechanics.K. Kong Wan & R. G. McLean - 1994 - Foundations of Physics 24 (5):715-737.
    The orthodox presentation of quantum theory often includes statements on state preparation and measurements without mentioning how these processes can be achieved. The often quoted projection postulate is regarded by many as problematical. This paper presents a systematic framework for state preparation and measurement. Within the existing Hilbert space formulation of quantum mechanics for spinless particles we show that it is possible (1)to prepare an arbitrary state and (2)to reduce all quantum measurements to local position measurements in an asymptotic way (...)
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