Security and application of semi-quantum key distribution protocol for users with different quantum capabilitiesChong-Qiang Ye, Jian Li, Xiu-Bo Chen, Yanyan Hou and Zhuo WangEPJ Quantum Technol., 10 1 (2023) 21DOI: https://doi.org/10.1140/epjqt/s40507-023-00180-3