Unambiguous discrimination of binary coherent states
by Wenbin Yu; Zijia Xiong; Shanshan Rong; Yang Liu; Siyao Wang; Yinsong Xu; Alex X. Liu
International Journal of Computational Science and Engineering (IJCSE), Vol. 22, No. 2/3, 2020

Abstract: Considering quantum detection, there are two different ways to make a measurement on signals set. One is minimum error discrimination and another is unambiguous states discrimination. In this work, we study the unambiguous state discrimination of coherent states. The quantum measurement model investigated is based on binary signals. All necessary positive-operator valued measurements are established to implement the quantum measurements in non-ambiguity way. The conclusive probability and inconclusive probability for the unambiguous discrimination of both on-off keying and binary-phase-shifting keying modulations are derived rigorously to show the measurement performance of proposed detection method theoretically.

Online publication date: Mon, 18-May-2020

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