Rb-Tm repeater chain performance simulation, code underlying the publication: Hybrid Quantum Repeaters with Ensemble-based Quantum Memories and Single-spin Photon Transducers

This is a piece of code simulating the operating process of the Rb-Tm repeater chain setup introduced in the paper. It uses the Monte-Carlo method to simulate the probabilistic processes of element entanglement generation, entanglement transfer, and entanglement swapping as the repeater operations. Finally, it returns the average secret key rate as the metric for the performance of the repeater chain setup.

本代码用于模拟论文中提出的铷-铥（Rb-Tm）中继链装置的运行流程。其采用蒙特卡洛（Monte-Carlo）方法，对作为中继操作的元素纠缠生成、纠缠传输与纠缠交换等概率性过程进行模拟，最终输出平均密钥生成速率，作为该中继链装置性能的评估指标。