中国物理B ›› 2025, Vol. 34 ›› Issue (1): 10302-010302.doi: 10.1088/1674-1056/ad8db0
所属专题: SPECIAL TOPIC — Quantum communication and quantum network
She-Xiang Jiang(蒋社想), Xiao-Long Wei(韦晓龙)†, Jin-Huan Li(李金欢), and Shuai-Shuai Li(李帅帅)
She-Xiang Jiang(蒋社想), Xiao-Long Wei(韦晓龙)†, Jin-Huan Li(李金欢), and Shuai-Shuai Li(李帅帅)
摘要: Implementing quantum wireless multi-hop network communication is essential to improve the global quantum network system. In this paper, we employ eight-level GHZ states as quantum channels to realize multi-hop quantum communication, and utilize the logical relationship between the measurements of each node to derive the unitary operation performed by the end node. The hierarchical simultaneous entanglement switching (HSES) method is adopted, resulting in a significant reduction in the consumption of classical information compared to multi-hop quantum teleportation (QT) based on general simultaneous entanglement switching (SES). In addition, the proposed protocol is simulated on the IBM Quantum Experiment platform (IBM QE). Then, the data obtained from the experiment are analyzed using quantum state tomography, which verifies the protocol's good fidelity and accuracy. Finally, by calculating fidelity, we analyze the impact of four different types of noise (phase-damping, amplitude-damping, phase-flip and bit-flip) in this protocol.
中图分类号: (Quantum communication)