arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1402.0939physics.comp-phcond-mat.str-elquant-ph
收藏

NCON：MATLAB的张量网络承包商

NCON: A tensor network contractor for MATLAB

Robert N. C. Pfeifer, Glen Evenbly, Sukhwinder Singh, Guifre Vidal

备注：
7 pages, 3 figures, RevTeX 4.1. Contains downloadable software v1.01. Amended download instructions to note that when clicking to download the source in .tar.gz format, arXiv actually supplies it in uncompressed .tar format. Substantial text overlap with arXiv:1310.8023: We use many of the same examples to describe the operation of ncon() as we do for the complementary package multienv()
阅读 PDF
arXiv 页面 ↗HTML 原文 ↗

摘要：

任何数值张量网络算法的实现中的基本过程是收缩张量网络。在这个过程中，由多个张量组成的网络通过求和索引连接，通过评估索引和将其简化为单个张量或数字。本文介绍了一个MATLAB函数ncon（），或“Network CONTRACTOR”，它接受一个张量网络和一个收缩序列作为其输入，该收缩序列描述了如何将该网络简化为一个张量或数字。作为其输出，它返回单个张量或数字。函数ncon（）可以通过下载本预印本的源代码获得。

英文摘要：

A fundamental process in the implementation of any numerical tensor network algorithm is that of contracting a tensor network. In this process, a network made up of multiple tensors connected by summed indices is reduced to a single tensor or a number by evaluating the index sums. This article presents a MATLAB function ncon(), or "Network CONtractor", which accepts as its input a tensor network and a contraction sequence describing how this network may be reduced to a single tensor or number. As its output it returns that single tensor or number. The function ncon() may be obtained by downloading the source of this preprint.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

↑