Data underlying the publication "Spin-Photon Correlations from a Purcell-enhanced Diamond Nitrogen-Vacancy Center Coupled to an Open Microcavity"

Data underlying the research article "Spin-Photon Correlations from a Purcell-enhanced Diamond Nitrogen-Vacancy Center Coupled to an Open Microcavity". In this physics paper, we present an efficient spin-photon interface between a coherently controlled diamond nitrogen-vacancy center spin qubit and a fiber-based Fabry-Perot microcavity. We demonstrate resonant optical spin qubit initialization and readout as well as coherent spin qubit control with microwave pulses. In combination with the Purcell-enhanced readout transition we generate two-qubit and three-qubit spin-photon states and measure heralded Z-basis correlations between the photonic time-bin qubits and the spin qubit. The measurements are performed in a quantum optics laboratory.The dataset contains the measured data and the python code to analyse and reproduce the figures shown in the text. The measurements are conducted with the Python 3 framework Quantum Measurement Infrastructure (QMI) and data is collected with Python-based data acquisition framework Quantify. The measured data is stored in individual hdf5 files, with a unique timestamp and identifier. Analysed data is stored in hdf5 files named processed dataset.Please see the README.md file for instructions on how to analyse the data and reproduce the figures.

本数据集支撑研究论文《耦合于开放式微腔的珀塞尔（Purcell）增强型金刚石氮-空位中心自旋-光子关联特性》。在该物理学论文中，我们构建了一套高效的自旋-光子接口，实现了相干调控的金刚石氮-空位中心自旋量子比特与光纤法布里-珀罗（Fabry-Perot）微腔之间的耦合。我们演示了共振光学自旋量子比特初始化与读出操作，以及基于微波脉冲的相干自旋量子比特调控方案。结合珀塞尔增强型读出跃迁，我们生成了双量子比特与三量子比特自旋-光子态，并测量了光子时间仓（time-bin）量子比特与自旋量子比特之间的触发式Z基（Z-basis）关联。所有实验均在量子光学实验室中完成。本数据集包含实验实测数据与用于分析并复现论文插图的Python代码。实验测量基于Python 3框架量子测量基础设施（Quantum Measurement Infrastructure, QMI）开展，数据采集则依托基于Python开发的数据采集框架Quantify完成。实测数据以独立的hdf5文件存储，每个文件均带有唯一的时间戳与标识符。经分析得到的数据集存储于名为`processed dataset`的hdf5文件中。关于数据分析与插图复现的操作指南，请参阅项目中的README.md文件。