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In free-space quantum key distribution (QKD) between moving parties, e.g., free-space QKD via satellite, the reference frame rotation and fluctuation degrades the performance of QKD. Reference-frame-independent QKD (RFI-QKD) provides a…

Quantum Physics · Physics 2019-03-27 Juhwan Yoon , Tanumoy Pramanik , Byung Kwon Park , Sang-Wook Han , Sangin Kim , Yong-Su Kim , Sung Moon

The reference-frame-independent quantum key distribution (RFI QKD) protocol enables QKD systems to function effectively despite slowly varying reference frames, offering a distinct advantage in practical scenarios, particularly in mobile…

Quantum Physics · Physics 2024-12-02 Xin Liu , Di Luo , Zhicheng Luo , Shizhuo Li , Zhenrong Zhang , Kejin Wei

Without actively aligning the reference frames, the reference-frame-independent quantum key distribution (RFI-QKD) can generate secure keys even when the reference frames drift slowly. Here, we propose a new scheme on the decoy-state…

Quantum Physics · Physics 2017-12-15 Jian-Rong Zhu , Chun-Mei Zhang , Guang-Can Guo , Qin Wang

Reference-frame-independent (RFI) quantum key distribution (QKD) presents promising advantages, especially for mobile-platform-based implementations, as it eliminates the need for active reference frame calibration. While RFI-QKD has been…

Quantum Physics · Physics 2024-06-07 Zhiyu Tian , Ziran Xie , Rong Wang , Chunmei Zhang , Shihai Sun

Rapidly and randomly drifted reference frames will shorten the link distance and decrease the secure key rate of realistic quantum key distribution (QKD) systems. However, an actively or inappropriately implemented calibration scheme will…

Quantum Physics · Physics 2021-04-05 Bang-Ying Tang , Huan Chen , Ji-Peng Wang , Hui-Cun Yu , Lei Shi , Shi-Hai Sun , Wei Peng , Bo Liu , Wan-Rong Yu

Reference-Frame-Independent Quantum Key Distribution (RFI-QKD) provides a practical way to generate secret keys between two remote parties without sharing common reference frames. On the other hand, Measurement-Device-Independent QKD…

Reference-frame-independent quantum key distribution (RFI QKD) protocol can reduce the requirement on the alignment of reference frames in practical systems. However, comparing with the Bennett-Brassard (BB84) QKD protocol, the main…

Quantum Physics · Physics 2019-09-25 Hongwei Liu , Jipeng Wang , Haiqiang Ma , Shihai Sun

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.…

Quantum Physics · Physics 2020-05-20 Feng-Yu Lu , Zhen-Qiang Yin , Guan-Jie Fan-Yuan , Rong Wang , Hang Liu , Shuang Wang , Wei Chen , De-Yong He

Reference frame independent quantum key distribution (RFI-QKD) has gained widespread attention due to the unique advantage for practical application, as it circumvents the need for active reference frame alignment within the system.…

Quantum Physics · Physics 2024-05-28 Ziran Xie , Zhiyu Tian , Shihai Sun

Reference-frame-independent measurement-device-independent quantum key distribution (RFI-MDI-QKD) eliminates detector side-channel attacks and avoids reference-frame calibration. While its feasibility has been widely demonstrated, existing…

Quantum Physics · Physics 2026-01-09 Xin Liu , Zhicheng Luo , Kaibiao Qin , Jiawang Liu , Zhenrong Zhang , Kejin Wei

Measurement-device-independent quantum key distribution (MDI-QKD) is proved to be able to eliminate all potential detector side channel attacks. Combining with the reference frame independent (RFI) scheme, the complexity of practical system…

Quantum Physics · Physics 2018-11-12 Hongwei Liu , Jipeng Wang , Haiqiang Ma , Shihai Sun

Reference-frame-independent measurement-device-independent quantum key distribution (RFI-MDI-QKD) can remove all potential detector side-channel attacks and the requirement of real-time alignment of reference frames. However, all previous…

Quantum Physics · Physics 2021-09-01 Jian-Rong Zhu , Chun-Mei Zhang , Qin Wang

Reference-frame-independent quantum key distribution (RFI QKD) significantly alleviates alignment requirements for reference frame in practical quantum communication systems. While the original protocol requires Alice to prepare six quantum…

Quantum Physics · Physics 2025-04-23 Jia-Wei Ying , Shi-Pu Gu , Xing-Fu Wang , Lan Zhou , Yu-Bo Sheng

The discrepancy between theory and experiment severely limits the development of quantum key distribution (QKD). Reference-frame-independent (RFI) protocol has been proposed to avoid alignment of the reference frame. However, multiple…

Quantum Physics · Physics 2022-04-06 Zhenhua Li , Tianqi Dou , Jipeng Wang , Zhongqi Sun , Fen Zhou , Yanxin Han , Yuqing Huang , Hongwei Liu , Haiqiang Ma

We have demonstrated a proof-of-principle experiment of reference-frame-independent phase coding quantum key distribution (RFI-QKD) over an 80-km optical fiber. After considering the finite-key bound, we still achieve a distance of 50 km.…

Quantum key distribution (QKD) is moving from research laboratories towards applications. As computing becomes more mobile, cashless as well as cardless payment solutions are introduced, and a need arises for incorporating QKD in a mobile…

Quantum Physics · Physics 2013-07-04 J. Wabnig , D. Bitauld , H. W. Li , A. Laing , J. L. O'Brien , A. O. Niskanen

We study a novel protocol for reference frame independent (RFI) quantum key distribution (QKD) using six states for Alice and four states for Bob, while previous RFI protocols require a six state analyzer for Bob. Our protocol can generate…

Quantum Key Distribution (QKD) promises to revolutionize the field of security in communication, with applications ranging from state secrets to personal data, making it a key player in the ongoing battle against cyber threats.…

Quantum key distribution (QKD) permits information-theoretically secure transmission of digital encryption keys, assuming that the behaviour of the devices employed for the key exchange can be reliably modelled and predicted. Remarkably, no…

Quantum key distribution (QKD) offers a way for establishing information-theoretically secure communications. An important part of QKD technology is a high-quality random number generator (RNG) for quantum states preparation and for…

Quantum Physics · Physics 2018-01-24 A. S. Trushechkin , P. A. Tregubov , E. O. Kiktenko , Y. V. Kurochkin , A. K. Fedorov
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