典型文献
Simultaneous two-way classical communication and measurement-device-independent quantum key distribution on oceanic quantum channels
文献摘要：
Simultaneous two-way classical and quantum(STCQ)communication combines both continuous classical coherent optical communication and continuous-variable quantum key distribution(CV-QKD),which eliminates all detection-related imperfections by being measurement-device-independent(MDI).In this paper,we propose a protocol relying on STCQ communication on the oceanic quantum channel,in which the superposition-modulation-based coherent states depend on the information bits of both the secret key and the classical communication ciphertext.We analyse the encoding combination in classical communication and consider the probability distribution transmittance under seawater turbulence with various interference factors.Our numerical simulations of various practical scenarios demonstrate that the proposed protocol can simultaneously enable two-way classical communication and CV-MDI QKD with just a slight performance degradation transmission distance compared to the original CV-MDI QKD scheme.Moreover,the asymmetric situation outperforms the symmetric case in terms of transmission distance and optical modulation variance.We further take into consideration the impact of finite-size effects to illustrate the applicability of the proposed scheme in practical scenarios.The results show the feasibility of the underwater STCQ scheme,which contributes toward developing a global quantum communication network in free space.
文献关键词：
中图分类号：
作者姓名：
Hongyang Hu;Hai Zhong;Wei Ye;Ying Guo
作者机构：
School of Automation,Central South University,Changsha 410083,China;School of Computer Science and Engineering,Central South University,Changsha 410083,China
文献出处：
引用格式：
[1]Hongyang Hu;Hai Zhong;Wei Ye;Ying Guo-.Simultaneous two-way classical communication and measurement-device-independent quantum key distribution on oceanic quantum channels)[J].理论物理,2022(12):21-34
A类：
STCQ
B类：
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AB值：
0.541772
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