Estimation of key rate after setting dead time |
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| Authors: | Liu Dong Yin Zhen-Qiang Wang Shuang Wang Fen-Mei Chen Wei Han Zheng-Fu |
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| Institution: | a. Key Laboratory of Quantum Information of the Chinese Academy of Sciences,University of Science and Technology of China, Hefei 230026, China;b. Army Officer Academy of PLA, Hefei 230031, China |
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| Abstract: | The estimation of key rate is an important aspect of the quantum key distribution process, especially in the use of dead time. In this paper, we demonstrate a numerical simulation to estimate the average detection probability and the key rate. Using our method, the estimated average detection probability is better than the previous result. Besides, we can easily find the best dead time, especially when considering the impact of after pulse. |
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| Keywords: | dead time key rate quantum key distribution |
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