Data underlying the publication "Satellite-assisted Entanglement Distribution with High-Dimensional Photonic Encoding"

Code and data for the results shown in the paper "Satellite-assisted Entanglement Distribution with High-Dimensional Encoding". This physics paper presents a satellite-based protocol to simultaneously distribute multiple entangled pairs between two ground stations using high-dimensional photonics in the source. By operating the SPDC source as a source of time-bin encoded photonic qudits, simultaneous distribution of multiple entangled pairs between the ground stations can be achieved at a significantly higher rate than if the SPDC sources was operated as a source of photonic qubits. We find that for achievable coherence times of several seconds and demonstrated satellite performances from the Micius satellite, the qudit operation leads to several orders of magnitude faster distribution rates than the qubit-based operation when more than one event-ready high-quality entangled pair is desired.<br>The dataset includes the Python code for the model presented in the paper, as well as the simulation data used in the figures of the manuscript.<br>Please see the README.txt file for intructions on how to reproduce the figures.

本数据集包含论文《基于高维编码的卫星辅助纠缠分发（Satellite-assisted Entanglement Distribution with High-Dimensional Encoding）》中展示的实验结果对应的代码与数据。该物理学论文提出了一种卫星基协议，可在信号源端利用高维光子技术，实现两个地面站之间多组纠缠光子对的同时分发。通过将自发参量下转换（Spontaneous Parametric Down-Conversion, SPDC）源配置为产出时仓编码光子量子多态粒子（qudit）的信号源，相较于将该SPDC源作为光子量子比特（qubit）源的运行模式，可显著提升地面站间多组纠缠光子对的同时分发速率。研究表明，在数秒级可实现的相干时长以及“墨子号”（Micius）卫星已验证的在轨性能前提下，当需要获取至少一组具备事件就绪特性的高质量纠缠光子对时，采用qudit操作的分发速率较基于qubit的方案可提升数个数量级。
本数据集涵盖了论文中提出的模型对应的Python代码，以及论文手稿配图所用的仿真实验数据。
如需复现论文配图，请参阅README.txt文件中的操作说明。