Narayanan Rengaswamy, K. Seshadreesan, S. Guha, H. Pfister
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引用次数: 0
Abstract
We design a quantum joint-detection receiver for binary-phase-shift-keyed optical communications using belief propagation with quantum messages. For an exemplary tree code, the receiver attains the block-Helstrom limit in discriminating the codewords and achieves superadditive capacity.