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arXiv · 2306.16671

Entanglement Routing over Quantum Networks Using Greenberger-Horne-Zeilinger Measurements

Yiming Zeng·Jiarui Zhang·Ji Liu·Zhenhua Liu·Yuanyuan Yang
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Abstract

Generating a long-distance quantum entanglement is one of the most essential functions of a quantum network to support quantum communication and computing applications. The successful entanglement rate during a probabilistic entanglement process decreases dramatically with distance, and swapping is a widely-applied quantum technique to address this issue. Most existing entanglement routing protocols use a classic entanglement-swapping method based on Bell State measurements that can only fuse two successful entanglement links. This paper appeals to a more general and efficient swapping method, namely n-fusion based on Greenberger-Horne-Zeilinger measurements that can fuse n successful entanglement links, to maximize the entanglement rate for multiple quantum-user pairs over a quantum network. We propose efficient entanglement routing algorithms that utilize the properties of n-fusion for quantum networks with general topologies. Evaluation results highlight that our proposed algorithm under n-fusion can greatly improve the network performance compared with existing ones.

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Yiming Zeng, Jiarui Zhang, Ji Liu, Zhenhua Liu, Yuanyuan Yang. 2023-06-29. Entanglement Routing over Quantum Networks Using Greenberger-Horne-Zeilinger Measurements. https://arxiv.org/abs/2306.16671

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