3 papers
quant-ph2025
Ultrabright Entanglement Based Quantum Key Distribution over a 404 km Optical Fiber
Shi-Chang Zhuang, Bo Li, Ming-Yang Zheng +14
Entangled photons are crucial resources for quantum information processing. Here, we present an ultrabright polarization-entangled photon source based on a periodically poled lithi…
quant-ph2025
Free-Space Twin-Field Quantum Key Distribution
Yu-Huai Li, Ting Zeng, Min-Yan Wang +22
Twin-field quantum key distribution (TF-QKD) elevates the secure key rate from a linear to a square-root dependence on channel loss while preserving measurement-device-independent…
quant-ph2024
Single-photon interference over 8.4 km urban atmosphere: towards testing quantum effects in curved spacetime with photons
Hui-Nan Wu, Yu-Huai Li, Bo Li +8
The emergence of quantum mechanics and general relativity has transformed our understanding of the natural world significantly. However, integrating these two theories presents imm…