使用现有基础设施设计量子网络
Designing Quantum Networks Using Preexisting Infrastructure
摘要：
我们考虑在现有光纤基础设施上部署量子网络的问题，其中量子中继器和终端节点只能容纳在特定位置。我们提出了一种基于整数线性规划（ILP）的方法来放置最小数量的中继器在这样一个现有的网络拓扑结构，这样的要求，端到端的纠缠生成率和保真度之间的任何一对端节点得到满足。虽然ILP通常很难解决，但我们证明了我们的方法在多达100个节点的网络中的实践表现良好。我们说明了我们的方法在随机生成的网络拓扑结构，以及在荷兰部署的一个现实世界的光纤拓扑结构的行为。
英文摘要：
We consider the problem of deploying a quantum network on an existing fiber infrastructure, where quantum repeaters and end nodes can only be housed at specific locations. We propose a method based on integer linear programming (ILP) to place the minimal number of repeaters on such an existing network topology, such that requirements on end-to-end entanglement-generation rate and fidelity between any pair of end-nodes are satisfied. While ILPs are generally difficult to solve, we show that our method performs well in practice for networks of up to 100 nodes. We illustrate the behavior of our method both on randomly-generated network topologies, as well as on a real-world fiber topology deployed in the Netherlands.
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