Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Laser & Optoelectronics Progress

Scheme of Measurement-Device-Independent Classical-Quantum Signal Transmission in Shared Fiber

程康 Cheng Kang, 周媛媛 Zhou Yuanyuan, 王欢 Wang Huan

Published Jan 1, 2019• 1 citation
Publisher
DOI
10.3788/lop56.082701

Related papers

Coexistence of Quantum-classical Signals Based on Single-mode Operation in Few-mode Fiber

罗均文 Luo Junwen, 李云霞 Li Yunxia, Lei Shi +3 more

ACTA PHOTONICA SINICA•Jan 1, 2017•0 citations

Long-distance device-independent conference key agreement

Makoto Ishihara, Anders J. E. Bjerrum, Wojciech Roga +3 more

Device-independent quantum key distribution (DI-QKD) enables two remote parties to share an information-theoretically secure key without any assumptions on the inner workings of the devices used. Device-independent conference key agreement (DI-CKA) is multipartite DI-QKD in which more than two parties share a common secure key. The performance of DI-CKA, however, is strictly limited because of its susceptibility to losses due to, e.g., imperfect detection efficiency and channel transmission. Here, we propose a DI-CKA protocol which reduces this limitation by using a heralding scheme to distribute multipartite entanglement. We analyze key rates of our protocol for two different measurement scenarios, and we show that our protocol outperforms a previous DI-CKA protocol even with an experimentally feasible measurement.

arXiv:2506.01296•Physical Review A•Aug 5, 2025•0 citations

Experimental realization of a quantum fiber-optics communication channel

S. L. Galkin, M. B. Koksiiska, B. I. Minkov +1 more

TePhL•Oct 1, 1994•0 citations

Classical-quantum signals simultaneous transmission sharing a same fiber based on mode division multiplexing

Cong Chen, Min Hu, Banghon Guo

Quantum cryptography uses the basic principles of quantum physics to ensure the security of information transmission. In theory, it has unconditional security and can provide new technical guarantees for information security in various fields of society. In order to save the cost of deploying the QKD network, the QKD network can be combined with the existing classical communication network, so that the quantum signal and the classical signal can be transmitted through the same fiber. However, there are still many key technical problems in the fusion network of quantum communication and classical communication. This paper proposes a technique of classical-quantum signals simultaneous transmission sharing a same fiber based on mode division multiplexing. This scheme improves the problem that a large mode gain difference between different modes caused by EDFA and leads to a decrease in the transmission capacity of the system in the existing long distance mode division multiplexing transmission system.

Eighth Symposium on Novel Photoelectronic Detection Technology and Applications•Mar 12, 2021•0 citations

Fiber Optics Protocols for Quantum Communication

Serge Massar

Quantum Information Processing•Aug 31, 2006•2 citations

Continuous-Variable Quantum Secret Sharing Through Microwave-Enabled Turbulent Channels with Measurement-Device-Independent Scheme

Weihan Zhang, Zhangtao Liang, Yun Mao +2 more

Quantum secret sharing (QSS) has been previously demonstrated with conceivability in optical-fiber channels. However, extending this framework to the microwave frequency band presents challenges in achieving secure quantum communications over turbulent channels, as intricate turbulence can induce amplitude and phase jitter in quantum signals, leading to decoherence or even interruptions in the communication link. In this work, we propose a microwave-enabled continuous-variable quantum secret sharing (CVQSS) scheme operating over turbulent free-space channels. The protocol explicitly addresses the extreme sensitivity of microwave quantum states to environmental turbulence, which manifests as severe amplitude and phase fluctuations. It incorporates the Shamir threshold scheme to facilitate multi-user secret sharing. We suggest a flexible approach to solving problems of adaptive phase compensation and multi-aperture reception techniques when characterizing an equivalent noise channel based on the Kolmogorov turbulence model. The proposed measurement-device-independent (MDI) architecture renders the protocol immune to all detector-side attacks, provided that the state preparation at the users' side is trusted. Numerical simulations ascertain the performance of the microwave continuous-variable measurement-device-independent quantum secret sharing (CV-MDI-QSS) system and demonstrate the feasibility of practical deployment in complicated turbulent channels. This approach offers a turbulence-resistant solution for dynamic quantum networks through harsh free-space channels implemented in microwave-propagated environments.

Entropy•May 10, 2026•0 citations
Device-independent quantum key distribution (DI-QKD) enables two remote parties to share an information-theoretically secure key without any assumptions on the inner workings of the devices used. Device-independent conference key agreement (DI-CKA) is multipartite DI-QKD in which more than two parties share a common secure key. The performance of DI-CKA, however, is strictly limited because of its susceptibility to losses due to, e.g., imperfect detection efficiency and channel transmission. Here, we propose a DI-CKA protocol which reduces this limitation by using a heralding scheme to distribute multipartite entanglement. We analyze key rates of our protocol for two different measurement scenarios, and we show that our protocol outperforms a previous DI-CKA protocol even with an experimentally feasible measurement.
Quantum cryptography uses the basic principles of quantum physics to ensure the security of information transmission. In theory, it has unconditional security and can provide new technical guarantees for information security in various fields of society. In order to save the cost of deploying the QKD network, the QKD network can be combined with the existing classical communication network, so that the quantum signal and the classical signal can be transmitted through the same fiber. However, there are still many key technical problems in the fusion network of quantum communication and classical communication. This paper proposes a technique of classical-quantum signals simultaneous transmission sharing a same fiber based on mode division multiplexing. This scheme improves the problem that a large mode gain difference between different modes caused by EDFA and leads to a decrease in the transmission capacity of the system in the existing long distance mode division multiplexing transmission system.
Quantum secret sharing (QSS) has been previously demonstrated with conceivability in optical-fiber channels. However, extending this framework to the microwave frequency band presents challenges in achieving secure quantum communications over turbulent channels, as intricate turbulence can induce amplitude and phase jitter in quantum signals, leading to decoherence or even interruptions in the communication link. In this work, we propose a microwave-enabled continuous-variable quantum secret sharing (CVQSS) scheme operating over turbulent free-space channels. The protocol explicitly addresses the extreme sensitivity of microwave quantum states to environmental turbulence, which manifests as severe amplitude and phase fluctuations. It incorporates the Shamir threshold scheme to facilitate multi-user secret sharing. We suggest a flexible approach to solving problems of adaptive phase compensation and multi-aperture reception techniques when characterizing an equivalent noise channel based on the Kolmogorov turbulence model. The proposed measurement-device-independent (MDI) architecture renders the protocol immune to all detector-side attacks, provided that the state preparation at the users' side is trusted. Numerical simulations ascertain the performance of the microwave continuous-variable measurement-device-independent quantum secret sharing (CV-MDI-QSS) system and demonstrate the feasibility of practical deployment in complicated turbulent channels. This approach offers a turbulence-resistant solution for dynamic quantum networks through harsh free-space channels implemented in microwave-propagated environments.