Quantum switches are critical components in quantum networks, distributing maximally entangled pairs among end nodes by entanglement swapping. In this work, we design protocols that schedule entanglement swapping operations in quantum switches. Entanglement requests randomly arrive at the switch, and the goal of an entanglement swapping protocol is to stabilize the quantum switch so that the number of unfinished entanglement requests is bounded with a high probability. We determine the capacity region for the rates of entanglement requests and develop entanglement swapping protocols to stabilize the switch. Among these protocols, the on-demand protocols are not only computationally efficient, but also achieve high fidelity and low latency demonstrated by results obtained using a quantum network discrete event simulator.

翻译：量子交换器是量子网络的关键部件,通过缠绕交换在终端节点之间分配最大缠绕的配对。 在这项工作中,我们设计了在量子交换器中安排缠绕互换操作的规程。 缠绕要求随机到达开关, 纠缠互换协议的目标是稳定量子交换程序, 以便未结缠绕请求的数量有很高的概率。 我们确定纠缠请求速度的能力区域, 并开发纠缠互换协议以稳定开关。 在这些规程中, 点对调协议不仅具有计算效率, 而且通过使用量子网络离散事件模拟器获得的结果, 实现了高度忠诚和低长期性 。