频道(广播)
概率逻辑
计算机科学
相(物质)
分子通讯
量子
放大器
信号(编程语言)
理想(伦理)
噪音(视频)
拓扑(电路)
电子工程
统计物理学
物理
电信
发射机
量子力学
电气工程
工程类
带宽(计算)
人工智能
哲学
程序设计语言
图像(数学)
认识论
作者
Hamza Adnane,Berihu Teklu,Matteo G. A. Paris
出处
期刊:Journal of The Optical Society of America B-optical Physics
[The Optical Society]
日期:2019-10-03
卷期号:36 (11): 2938-2938
被引量:25
标识
DOI:10.1364/josab.36.002938
摘要
We address quantum M-ary phase-shift keyed communication channels in the presence of phase diffusion and analyze the use of probabilistic noiseless linear amplifiers (NLAs) to enhance performance of coherent signals. We consider both static and dynamical phase diffusion and assess the performances of the channel for ideal and realistic phase receivers. Our results show that NLA employed at the stage of signal preparations is a useful resource, especially in the regime of weak signals. We also discuss the interplay between the use of NLA and the memory effects occurring with dynamical noise in determining the capacity of the channel.
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