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Quantum Key Distribution Based on Interferometry and Interaction-Free Measurement

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Abstract

We propose a quantum key distribution based on Mach-Zehnder (MZ) interferometry and interaction-free measurement on single photon. The raw key comes from the photons on which MZ interferometry happened. And the interaction-free measurements are used to detect eavesdroppers. The analysis indicates that the protocol is secure, and can prevent some familiar attacks, such as photon number splitting (PNS) attack. This scheme is easy to be realized in current experiments.

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Acknowledgments

This work is supported by NSFC (Grant Nos. 61272057, 61170270, 61370188), Beijing Higher Education Young Elite Teacher Project (Grant Nos. YETP0475, YETP0477), the Fundamental Research Funds for the Central Universities (Grant No. 328201506), China scholarship council.

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Authors and Affiliations

  1. Beijing Electronic Science and Technology Institute, Beijing, 100070, China

    Yan-Bing Li, Sheng-Wei Xu, Fang Liu & Zong-Jie Wan

  2. State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, 100876, China

    Yan-Bing Li & Qing-Le Wang

  3. Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, IL, 60208, USA

    Yan-Bing Li

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  1. Yan-Bing Li
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  2. Sheng-Wei Xu
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  4. Fang Liu
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Correspondence to Yan-Bing Li.

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Li, YB., Xu, SW., Wang, QL. et al. Quantum Key Distribution Based on Interferometry and Interaction-Free Measurement. Int J Theor Phys 55, 98–106 (2016). https://doi.org/10.1007/s10773-015-2636-9

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