作者: Denis Sych , Gerd Leuchs
DOI: 10.1103/PHYSREVLETT.117.200501
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摘要: We address the long-standing problem of discriminating coherent states with minimum error rate. show an optimum receiver for which admits a relatively simple implementation current technologies. The is based on multichannel splitting signal, followed by feed-forward signal displacement and photon-counting detection. develop optimal control strategy finite split convergence rate to Helstrom bound.