Hierarchical simultaneous entanglement swapping for multi-hop quantum communication based on multi-particle entangled states
Guang Yang(杨光, Lei Xing(邢磊), Min Nie(聂敏), Yuan-Hua Liu(刘原华), and Mei-Ling Zhang(张美玲)
中国物理B . 2021, (3): 30301 .  DOI: 10.1088/1674-1056/abcf3d