We investigate the possibility of implementing a given measurement using linear optics and continuous measurement. In particular, we revisit the so‐called Dolinar receiver, a quasi‐physical model attaining the minimum error discrimination of binary coherent states, to give an alternative derivation for the optimal discrimination scheme. Our approach is rather simple and can be applied to various kinds of measurements such as projection measurements in the regime of photonic‐qubit signals.
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© 2004 American Institute of Physics.
2004
American Institute of Physics
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