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quant-ph1996
Operational Theory of the Eight-Port Homodyne Detection
Piotr Kochanski, Krzysztof Wodkiewicz
The eight-port homodyne detection apparatus is analyzed in the framework of the operational theory of quantum measurement. For an arbitrary quantum noise leaking through the unused…
quant-ph1996
Intrinsic and Operational Observables in Quantum Mechanics
Piotr Kochanski, Krzysztof Wodkiewicz
The concept of intrinsic and operational observables in quantum mechanics is introduced. It is argued that, in any realistic description of a quantum measurement that includes a de…