在存在相位噪声的情况下用于二进制相移键控辨别的稳健混合接收器

IF 0.7 4区物理与天体物理 Q3 COMPUTER SCIENCE, THEORY & METHODS

International Journal of Quantum Information Pub Date : 2024-03-21 DOI:10.1142/s0219749924500084

Michele N. Notarnicola, Stefano Olivares

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引用次数: 0

摘要

我们探讨了相位扩散情况下的相干状态辨别问题。我们研究了我们在[J. Opt. Soc. Am. B40 (2023) 705]中提出的 HYbrid Near-Optimum Receiver (HYNORE) 在减轻噪声影响任务中的作用。我们证明 HYNORE 是一种稳健的接收器，其性能优于位移光子数解析（DPNR）接收器，并在特定情况下超越了标准量子极限。我们引入了可容忍的最大相位噪声σmax，作为接收器鲁棒性的优劣值，并证明相对于DPNR接收器，HYNORE提高了其值。

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A robust hybrid receiver for binary phase-shift keying discrimination in the presence of phase noise

We address the problem of coherent state discrimination in the presence of phase diffusion. We investigate the role of the HYbrid Near-Optimum Receiver (HYNORE) we proposed in [J. Opt. Soc. Am. B40 (2023) 705] in the task of mitigating the noise impact. We prove the HYNORE to be a robust receiver, outperforming the Displacement Photon-Number-Resolving (DPNR) receiver and beating the standard quantum limit in particular regimes. We introduce the maximum tolerable phase noise $σ$ _max as a figure of merit for the receiver robustness and show that HYNORE increases its value with respect to the DPNR receiver.

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来源期刊

International Journal of Quantum Information 物理-计算机：理论方法

CiteScore

2.20

自引率

8.30%

发文量

审稿时长

10 months

期刊介绍： The International Journal of Quantum Information (IJQI) provides a forum for the interdisciplinary field of Quantum Information Science. In particular, we welcome contributions in these areas of experimental and theoretical research: Quantum Cryptography Quantum Computation Quantum Communication Fundamentals of Quantum Mechanics Authors are welcome to submit quality research and review papers as well as short correspondences in both theoretical and experimental areas. Submitted articles will be refereed prior to acceptance for publication in the Journal.