GrassmannTN：用于格拉斯曼张量网络计算的 Python 软件包

SciPost Physics Codebases Pub Date : 2023-09-14 DOI:10.21468/SciPostPhysCodeb.20 10.21468/SciPostPhysCodeb.20-r1.3

Atis Yosprakob

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摘要

我们介绍一个用于计算格拉斯曼张量网络的 Python 软件包 GrassmannTN。该软件包用于辅助数值计算，无需手动输入费米子符号因子。它通过围绕张量下标设计每个张量操作函数，优先考虑编码的可读性。使用 GrassmannTN 计算格拉斯曼张量重正化群和格拉斯曼等距作为用例给出。

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GrassmannTN: A Python package for Grassmann tensor network computations

We present GrassmannTN, a Python package for the computation of the Grassmann tensor network. The package is built to assist in the numerical computation without the need to input the fermionic sign factor manually. It prioritizes coding readability by designing every tensor manipulating function around the tensor subscripts. The computation of the Grassmann tensor renormalization group and Grassmann isometries using GrassmannTN are given as the use case examples.

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