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Experimental demonstration of passive decoy state quantum key distribution |
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| Authors: | Zhang Yang Wang Shuang Yin Zhen-Qiang Chen Wei Liang Wen-Ye Li Hong-Wei Guo Guang-Can Han Zheng-Fu |
| Affiliation: | Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230026, China |
| Abstract: | Passive decoy state quantum key distribution (PDS-QKD) has advantages in high-speed scenarios. We propose a modified model to simulate the PDS-QKD with a weak coherent light source based on Curty's theory [Opt. Lett.34 3238 (2009)]. The modified model can provide better performance in a practical PDS-QKD system. Moreover, we report an experimental demonstration of the PDS-QKD of over 22.0-dB channel loss. |
| Keywords: | quantum key distribution passive decoy state method |
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