mpnum 0.1.1

matrix product representation library

[MPNUM]

A matrix product representation library for Python

[Travis] [Documentation Status]

This code is work in progress.

mpnum is a Python library providing flexible tools to implement new numerical schemes based on matrix product states (MPS). So far, we provide:

• basic tools for various matrix product based representations, such as:

• matrix product states (MPS), also known as tensor trains (TT)

• matrix product operators (MPO)

• local purification matrix product states (PMPS)

• arbitrary matrix product arrays (MPA)

• basic MPA operations: add, multiply, etc; compression (SVD and variational)

• computing ground states (the smallest eigenvalue and eigenvector) of MPOs

• flexible tools to implement new schemes based on matrix product representations

For more information, see:

• Introduction to mpnum

• Notebook with code examples

• Library reference

Required packages:

• six, numpy, scipy, sphinx (to build the documentation)

Supported Python versions:

• 2.7, 3.3, 3.4, 3.5

Contributors

• Daniel Suess, [e-mail], University of Cologne

• Milan Holzaepfel, [e-mail], Ulm University

License

Distributed under the terms of the BSD 3-Clause License (see LICENSE).