Quantum teleportation is an important method for transmitting quantum states between two quantum communication nodes. In this paper, we propose a low-latency quantum communication scheme based on Greenberger-Horne-Zeilinger (GHZ) state. To implement two-qubit transmission, the source and all intermediate nodes perform quantum measurements simultaneously and the measurement results are transmitted to the destination node through classical channel independently. The destination node performs appropriate unitary operation on its particles to recover the original two-qubit state based on received measurement results. Our scheme effectively reduces the end-to-end quantum communication delay.

中文翻译：

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通过 GHZ-GHZ 通道的忠实多跳两量子比特传输

量子隐形传态是两个量子通信节点之间传递量子态的重要方法。在本文中，我们提出了一种基于 Greenberger-Horne-Zeilinger (GHZ) 状态的低延迟量子通信方案。为了实现双量子比特传输，源节点和所有中间节点同时进行量子测量，测量结果独立地通过经典信道传输到目的节点。目的节点根据接收到的测量结果对其粒子进行适当的幺正运算，以恢复原始的双量子比特状态。我们的方案有效地减少了端到端的量子通信延迟。