Quantum Key Distribution Based on Interferometry and Interaction-Free Measurement

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 th...

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Bibliographic Details
Published inInternational journal of theoretical physics Vol. 55; no. 1; pp. 98 - 106
Main Authors Li, Yan-Bing, Xu, Sheng-Wei, Wang, Qing-Le, Liu, Fang, Wan, Zong-Jie
Format Journal Article
LanguageEnglish
Published New York Springer US 01.01.2016
Subjects
Elementary Particles
Mathematical and Computational Physics
Physics
Physics and Astronomy
Quantum Field Theory
Quantum Physics
Theoretical
MZ interferometry
Interaction-free measurement
Quantum key distribution
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ISSN0020-7748
1572-9575
DOI10.1007/s10773-015-2636-9

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Summary: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.
ISSN:0020-7748
1572-9575
DOI:10.1007/s10773-015-2636-9