Data for "Coupling Quantum Spin Ice to Matter on the Centered Pyrochlore Lattice"

Data and code for the article "Coupling Quantum Spin Ice to Matter on the Centered Pyrochlore Lattice" (arXiv:2505.15677). The notebook figures.ipynb produces the figures for the articles from processed exact diagonalization (ED) data. The data is in the data folder. The notebooks in calculations, compute fidelities with the variational wavefunction and R state as well as fidelity of the ground (and first excited) state with neighboring parameter points. The raw N = 24 ED data for these calculations is in the data/ed_data folder. The repo contains code for computing the variational wavefunction as well as the c++ code for Lanczos ED for the N = 24 cluster.本数据集与代码配套于论文《耦合中心烧绿石晶格上的量子自旋冰与物质》（arXiv:2505.15677）。 notebook文件figures.ipynb可基于经预处理的严格对角化（exact diagonalization, ED）数据生成论文所需图表，相关数据存储于data文件夹内。 calculations文件夹下的notebook可用于计算变分波函数与R态之间的保真度，以及基态（及第一激发态）与相邻参数点的保真度。本计算所需的N=24原始严格对角化数据存储于data/ed_data文件夹中。 本仓库包含变分波函数的计算代码，以及针对N=24团簇的兰索斯（Lanczos）严格对角化C++代码。