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Efficient decoy-states for the reference-frame-independent measurement-device-independent quantum key distribution | | Feng-Yu Lu
; Zhen-Qiang Yin
; Guan-Jie Fan-Yuan
; Rong Wang
; Hang Liu
; Shuang Wang
; Wei Chen
; De-Yong He
; | | Date: |
10 Feb 2020 | | Abstract: | Reference-frame-independent measurement-device-independent quantum key
distribution (RFI-MDI-QKD) is a novel protocol which eliminates all possible
attacks on detector side and necessity of reference-frame alignment in source
sides. However, its performance may degrade notably due to statistical
fluctuations, since more parameters, e.g. yields and error rates for
mismatched-basis events, must be accumulated to monitor the security. In this
work, we find that the original decoy-states method estimates these yields over
pessimistically since it ignores the potential relations between different
bases. Through processing parameters of different bases jointly, the
performance of RFI-MDI-QKD is greatly improved in terms of secret key rate and
achievable distance when statistical fluctuations are considered. Our results
pave an avenue towards practical RFI-MDI-QKD. | | Source: | arXiv, 2002.3672 | | Services: | Forum | Review | PDF | Favorites | |
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