Decoy-state reference-frame-independent quantum key distribution with the single-photon-added coherent source

Reference-frame-independent quantum key distribution (RFI-QKD) can generate secure keys even when the reference frames drift slowly. Here, we propose to realize RFI-QKD with the single-photon-added coherent source (SPACS). Simulation results show that compared with the weak coherent state and the he...

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Bibliographic Details
Published in:Quantum information processing 2018-11, Vol.17 (11), p.1-9, Article 294
Main Authors: Zhu, Jian-Rong, Wang, Cen-Yang, Liu, Kang, Zhang, Chun-Mei, Wang, Qin
Format: Article
Language:English
Subjects:
Coherence
Data Structures and Information Theory
Mathematical Physics
Physics
Physics and Astronomy
Quantum Computing
Quantum cryptography
Quantum Information Technology
Quantum Physics
Spintronics
Variations
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Summary:Reference-frame-independent quantum key distribution (RFI-QKD) can generate secure keys even when the reference frames drift slowly. Here, we propose to realize RFI-QKD with the single-photon-added coherent source (SPACS). Simulation results show that compared with the weak coherent state and the heralded single-photon source, SPACS can remarkably improve the key generation rate and transmission distance of RFI-QKD. Moreover, our results show the significance of optimized parameters. When taking statistical fluctuations into consideration, RFI-QKD with SPACS can still achieve very good performance.
ISSN:1570-0755
1573-1332
DOI:10.1007/s11128-018-2063-y