11 papers
Nonclassicality of a delayed remote-controlled quantum computing model
Peicun Lin, Dongyang Wang, Yong Liu +1
Delegated quantum computing is likely to become the primary means for most people to access quantum computers in the future. However, these hardware inevitably operate beyond clien…
Pulsed laser attack at 1061 nm potentially compromises quantum key distribution
Anastasiya Ponosova, Irina Zhluktova, Daria Ruzhitskaya +6
Quantum key distribution systems offer cryptographic security, provided that all their components are thoroughly characterised. However, certain components might be vulnerable to a…
Intensity correlations in decoy-state BB84 quantum key distribution systems
Daniil Trefilov, Xoel Sixto, VÃctor Zapatero +3
The decoy-state method is a prominent approach to enhance the performance of quantum key distribution (QKD) systems that operate with weak coherent laser sources. Due to the limite…
Robustness of fiber-optic attenuators to 1061-nm sub-nanosecond pulsed laser radiation in quantum key distribution systems
Daria Ruzhitskaya, Irina Zhluktova, Anastasiya Ponosova +10
The security of quantum key distribution (QKD) systems relies on the physical integrity of their components. While laser-damage attacks (LDAs) using high-power continuous-wave (cw)…
Security analysis of orthogonal state attack on a high-speed quantum key distribution system
Jialei Su, Qingquan Peng, Jia-lin Chen +6
High-speed quantum key distribution (QKD) systems have achieved repetition frequencies above gigahertz through advanced technologies and devices, laying an important foundation for…
High-efficiency Weak-trace-free Counterfactual Communication via Quantum Zeno Effect
Tianyi Xing, Anqi Huang, Yizhi Wang +10
The quantum Zeno effect, which inhibits quantum state evolution via repeated weak measurements, significantly enhances the efficiency of interaction-free measurement (IFM). This fu…