Efficient scheme for preparing hybrid GHZ entangled states with multiple types of photonic qubits in circuit QEDLiang Bin, Yu Zhang, Qi-Ping Su and Chui-Ping YangEur. Phys. J. Plus, 137 9 (2022) 1046DOI: https://doi.org/10.1140/epjp/s13360-022-03251-z