Hybrid near-optimum binary receiver with realistic photon-number-resolving detectors

• URL: http://arxiv.org/abs/2207.07518v1
• Date: Fri, 15 Jul 2022 15:04:53 GMT
• Title: Hybrid near-optimum binary receiver with realistic photon-number-resolving detectors
• Authors: Michele N. Notarnicola, Matteo G. A. Paris and Stefano Olivares
• Abstract summary: We propose a near-optimum receiver for the discrimination of binary phase-shift-keyed coherent states using photon-number-resolving detectors. We show that the present hybrid setup is near-optimum and beats both the standard-quantum-limit and the performance of the Kennedy receiver.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose a near-optimum receiver for the discrimination of binary phase-shift-keyed coherent states employing photon-number-resolving detectors. The receiver exploits a discrimination strategy based on both the so-called homodyne-like and the direct detection, thus resulting in a hybrid scheme. We analyse the performance and the robustness of the proposed scheme under realistic conditions, namely, in the presence of inefficient detection and dark counts. We show that the present hybrid setup is near-optimum and beats both the standard-quantum-limit and the performance of the Kennedy receiver.

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