量子
量子密码学
物理
量子信息科学
钥匙(锁)
密钥生成
量子信息
量子纠缠
作者
Guan-Jie Fan-Yuan,Feng-Yu Lu,Shuang Wang,Zhen-Qiang Yin,De-Yong He,Zheng Zhou,Jun Teng,Wei Chen,Guang-Can Guo,Zheng-Fu Han
出处
期刊:Photonics Research
[The Optical Society]
日期:2021-10-01
卷期号:9 (10): 1881-1891
摘要
Untrusted node networks initially implemented by measurement-device-independent quantum key distribution (MDI-QKD) protocol are a crucial step on the roadmap of the quantum Internet. Considering extensive QKD implementations of trusted node networks, a workable upgrading tactic of existing networks toward MDI networks needs to be explicit. Here, referring to the nonstandalone (NSA) network of 5G, we propose an NSA-MDI scheme as an evolutionary selection for existing phase-encoding BB84 networks. Our solution can upgrade the BB84 networks and terminals that employ various phase-encoding schemes to immediately support MDI without hardware changes. This cost-effective upgrade effectively promotes the deployment of MDI networks as a step of untrusted node networks while taking full advantage of existing networks. In addition, the diversified demands on security and bandwidth are satisfied, and network survivability is improved.
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