1. Decoy-state measurement-device-independent quantum key distribution based on the Clauser-Horne-Shimony-Holt inequality.
- Author
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Chun-Mei Zhang, Mo Li, Hong-Wei Li, Zhen-Qiang Yin, Dong Wang, Jing-Zheng Huang, Yun-Guang Han, Man-Li Xu, Wei Chen, Shuang Wang, Patcharapong Treeviriyanupab, Guang-Can Guo, and Zheng-Fu Han
- Subjects
- *
QUANTUM communication (Optics) , *HILBERT space , *PHOTON beams , *COMPUTER simulation , *COHERENT states , *QUANTUM mechanics - Abstract
The measurement-device-independent quantum key distribution (MDI-QKD) protocol is proposed to remove the detector side channel attacks, while its security relies on the assumption that the encoding systems are perfectly characterized. In contrast, the MDI-QKD protocol based on the Clauser-Horne-Shimony-Holt inequality (CHSH-MDI-QKD) weakens this assumption, which only requires the quantum state to be prepared in the two-dimensional Hilbert space and the devices are independent. In experimental realizations, the weak coherent state, which is always used in QKD systems due to the lack of an ideal single-photon source, may be prepared in the high-dimensional space. In this paper, we investigate the decoy-state CHSH-MDI-QKD protocol with *(3 < s 5) intensities, including one signal state and j - 1 decoy states, and we also consider the finite-size effect on the decoy-state CHSH-MDI-QKD protocol with five intensities. Simulation results show that this scheme is very practical. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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