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Impact of Cross-Phase Modulation Induced by Classical Channels on the CV-QKD in a Hybrid System |
| CHEN Yan, SHEN Yong, TANG Guang-Zhao, ZOU Hong-Xin** |
Department of Physics, National University of Defense Technology, Changsha 410073
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| Cite this article: |
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CHEN Yan, SHEN Yong, TANG Guang-Zhao et al 2013 Chin. Phys. Lett. 30 110302 |
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Abstract We calculate the magnitude of cross phase modulation (XPM) induced by classical channels, and analyze its impact on quantum secure key rate. The results show that the XPM induced by classical signals is small and its impact on the quantum key distribution can be neglected.
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Received: 15 May 2013
Published: 30 November 2013
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| PACS: |
03.67.-a
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(Quantum information)
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42.50.Lc
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(Quantum fluctuations, quantum noise, and quantum jumps)
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42.55.Ah
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(General laser theory)
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