基于集成自发四波混频工程的全连接极化纠缠网络

IF 6.4 1区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY
Pingyu Zhu, Yan Wang, Yuxing Du, Miaomiao Yu, Kaikai Zhang, Kun Wang, Ping Xu
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引用次数: 0

摘要

量子通信由于其技术的成熟,正在迅速发展并逐步实现商业化。以可扩展和高效的方式在多个用户之间建立密集的通信链路对于实现大规模量子通信网络具有重要意义。在这里,我们提出了一种利用自发四波混合(SFWMs)工程和路径偏振转换器构建全连接极化纠缠网络的新方案。它不需要限制通信速度的有源光交换机,也不需要导致潜在安全风险的可信节点。网络中所需的频率通道随用户数量呈线性增长。我们通过实验演示了一个六用户完全连接的网络,该网络具有由四个泵驱动的片上SFWM过程。网络中的每个用户接收一个频率通道,用户之间的所有15个连接同时实现。我们的工作为有效地构建完全连接的大规模网络开辟了一个有前途的方案。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A fully connected polarization-entangled network via integrated spontaneous four-wave mixing engineering

Quantum communication is rapidly developing and is gradually being commercialized due to its technological maturity. Establishing dense communication links among multiple users in a scalable and efficient way is of great significance for realizing a large-scale quantum communication network. Here, we propose a novel scheme to construct a fully connected polarization-entangled network, utilizing the engineering of spontaneous four-wave mixings (SFWMs) and a path-polarization converter. It does not require active optical switches which limit the communication speed, or trusted nodes which lead to potential security risks. The required frequency channels in the network grow linearly with the number of users. We experimentally demonstrate a six-user fully connected network with on-chip SFWM processes motivated by four pumps. Each user in the network receives a frequency channel, and all fifteen connections between the users are implemented simultaneously. Our work opens up a promising scheme to efficiently construct fully connected large-scale networks.

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来源期刊
Science China Physics, Mechanics & Astronomy
Science China Physics, Mechanics & Astronomy PHYSICS, MULTIDISCIPLINARY-
CiteScore
10.30
自引率
6.20%
发文量
4047
审稿时长
3 months
期刊介绍: Science China Physics, Mechanics & Astronomy, an academic journal cosponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China, and published by Science China Press, is committed to publishing high-quality, original results in both basic and applied research. Science China Physics, Mechanics & Astronomy, is published in both print and electronic forms. It is indexed by Science Citation Index. Categories of articles: Reviews summarize representative results and achievements in a particular topic or an area, comment on the current state of research, and advise on the research directions. The author’s own opinion and related discussion is requested. Research papers report on important original results in all areas of physics, mechanics and astronomy. Brief reports present short reports in a timely manner of the latest important results.
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