W-state Analyzer and Multi-party Measurement-device-independent Quantum Key Distribution
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Zhu-2015-W-state analyzer.pdf
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614.56 KB
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Author(s)
Zhu, Changhua
Xu, Feihu
Pei, Changxing
Date Issued
December 2015
Journal
Scientific Reports
Publisher
Nature Publishing Group
Citation
Zhu, Changhua, Feihu Xu, and Changxing Pei. “W-State Analyzer and Multi-Party Measurement-Device-Independent Quantum Key Distribution.” Scientific Reports 5 (December 8, 2015): 17449.
Version
Final published version
Abstract
W-state is an important resource for many quantum information processing tasks. In this paper, we for the first time propose a multi-party measurement-device-independent quantum key distribution (MDI-QKD) protocol based on W-state. With linear optics, we design a W-state analyzer in order to distinguish the four-qubit W-state. This analyzer constructs the measurement device for four-party MDI-QKD. Moreover, we derived a complete security proof of the four-party MDI-QKD, and performed a numerical simulation to study its performance. The results show that four-party MDI-QKD is feasible over 150 km standard telecom fiber with off-the-shelf single photon detectors. This work takes an important step towards multi-party quantum communication and a quantum network.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1038/srep17449
