期刊
PHYSICS LETTERS A
卷 383, 期 4, 页码 311-315出版社
ELSEVIER
DOI: 10.1016/j.physleta.2018.10.048
关键词
Quantum key distribution; Reference-frame-independent; Passive decoy-state
资金
- National Key Research and Development Program of China [2018YFA0306400, 2017YFA0304100]
- National Natural Science Foundation of China [61475197, 61590932, 11774180, 61705110]
- Natural Science Foundation of Jiangsu Province [BK20170902]
- Outstanding Youth Project of Jiangsu Province [BK20150039]
- Natural Science Foundation of the Jiangsu Higher Education Institutions [15KJA120002, 17KJB140016]
- Postgraduate Research AMP
- Practice Innovation Program of Jiangsu Province [KYCX18_0906]
Reference-frame-independent quantum key distribution (RFI-QKD) has been demonstrated to be reliable and useful both in theories and experiments, which is intrinsically robust against slowly varying reference frames. In this paper, we propose an efficient scheme of passive decoy-state RFI-QKD based on the parametric down-conversion source, where a beam splitter splits the idler pulses into four local detection events to improve the performance of RFI-QKD systems. In addition, we demonstrate the worst relative rotation of reference frames in our scheme. Simulation results show that our scheme can achieve good performance even at the worst-case scenario. (C) 2018 Elsevier B.V. All rights reserved.
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