We propose an approach to distribute high-fidelity long-range entanglement in a quantum network assisted by the entanglement supplied by auxiliary short-range paths between the network nodes. Entanglement assistance in the form of shared catalyst states is utilized to maximize the efficiency of entanglement concentration transformations over the edges of the network. The catalyst states are recycled for use in adaptive operations at the network nodes and replenished periodically using the auxiliary short-range paths. The rate of long-range entanglement distribution using such entanglement assistance is found to be significantly higher than possible without using entanglement assistance.

中文翻译：

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短程纠缠辅助的量子网络

我们提出了一种在量子网络中通过网络节点之间的辅助短程路径提供的纠缠来在高保真度远程纠缠中分布的方法。利用共享催化剂状态形式的纠缠辅助来最大化网络边缘上纠缠浓度变换的效率。催化剂状态被回收以用于网络节点的自适应操作，并使用辅助短程路径定期进行补充。发现使用这种纠缠辅助的远距离纠缠分布的速率明显高于不使用纠缠辅助的可能性。