Implementation of the maximum entropy method for analytic continuation

We present Maxent, a tool for performing analytic continuation of spectral functions using the maximum entropy method. The code operates on discrete imaginary axis datasets (values with uncertainties) and transforms this input to the real axis. The code works for imaginary time and Matsubara frequency data and implements the ‘Legendre’ representation of finite temperature Green’s functions. It implements a variety of kernels, default models, and grids for continuing bosonic, fermionic, anomalous, and other data. Our implementation is licensed under GPLv3 and extensively documented. This paper shows the use of the programs in detail.

本报告呈现Maxent工具，该工具基于最大熵法执行光谱函数的解析延拓。代码操作于离散的虚轴数据集（具有不确定性的值）并将此输入转换为实轴。该代码适用于虚时间与马图巴拉频率数据，并实现了有限温度格林函数的‘勒让德’表示。它实现了多种核函数、默认模型和网格，以延续玻色子、费米子、异常以及其他数据。我们的实现遵循GPLv3许可，并具有详尽的文档。本文详细展示了程序的使用方法。