Improving the Performance of Practical Decoy-State Measurement-Device-Independent Quantum Key Distribution with Biased Basis Choice<xref rid="ctp_70_3_331_fn1" ref-type="fn">*</xref><fn id="ctp_70_3_331_fn1"><label>*</label><p>Supported by the National Key Research and Development Program of China under Grant Nos. 2018YFA0306400, 2017YFA0304100, the National Natural Science Foundation of China under Grants Nos. 61475197, 61590932, 11774180, 61705110, the Natural Science Foundation of the Jiangsu Higher Education Institutions under Grant Nos. 15KJA120002, 17KJB140016, the Outstanding Youth Project of Jiangsu Province through Grant No. BK20150039, the Natural Science Foundation of Jiangsu Province under Grant No. BK20170902, the Postgraduate Research and Practice Innovation Program of Jiangsu Province</p></fn>

Improving the Performance of Practical Decoy-State Measurement-Device-Independent Quantum Key Distribution with Biased Basis Choice**

Supported by the National Key Research and Development Program of China under Grant Nos. 2018YFA0306400, 2017YFA0304100, the National Natural Science Foundation of China under Grants Nos. 61475197, 61590932, 11774180, 61705110, the Natural Science Foundation of the Jiangsu Higher Education Institutions under Grant Nos. 15KJA120002, 17KJB140016, the Outstanding Youth Project of Jiangsu Province through Grant No. BK20150039, the Natural Science Foundation of Jiangsu Province under Grant No. BK20170902, the Postgraduate Research and Practice Innovation Program of Jiangsu Province

Zhang Chun-Hui, Zhang Chun-Mei, Wang Qin^†

(Color online) Asymptotic comparison of the final key generation rate between Xu et al.’s work and our work. (a) The absolute values of the final key rates with logarithm scale: W0 (H0) refers to the results of using standard three-intensity decoy-state MDI-QKD with WCS (HSPS) without considering statistical fluctuations; W1 (H1) represents the results of employing Xu et al.’s three-intensity decoy-state MDI-QKD with WCS (HSPS) by accounting for statistical fluctuations; W2 (H2) corresponds to applying our method with WCS (HSPS) when taking statistical fluctuations into account. (b) The relative values of final key generation rates. We set N = 10²⁵ for the both cases when accounting for statistical fluctuations.