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100932 |
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|a dc
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|a Zhu, Changhua
|e author
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|a Massachusetts Institute of Technology. Research Laboratory of Electronics
|e contributor
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|a Xu, Feihu
|e contributor
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|a Xu, Feihu
|e author
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|a Pei, Changxing
|e author
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|a W-state Analyzer and Multi-party Measurement-device-independent Quantum Key Distribution
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|b Nature Publishing Group,
|c 2016-01-19T21:23:55Z.
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| 856 |
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|z Get fulltext
|u http://hdl.handle.net/1721.1/100932
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|a 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.
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|a United States. Office of Naval Research
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|a United States. Air Force Office of Scientific Research
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|a National Natural Science Foundation (China) (61372076)
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|a National Natural Science Foundation (China) (61301171)
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|a National 111 Project of China (B08038)
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|a China Scholarship Council (201308615037)
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|a en_US
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|a Article
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|t Scientific Reports
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