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@ITensor

ITensor

A software library for developing and performing state of the art tensor network calculations.
README.md

Welcome to the ITensor organization

This is the ITensor organization. This organization revolves around the Julia and C++ versions of the ITensor library for performing tensor network calculations, along with related Julia and C++ libraries.

The main developers are Matt Fishman and Miles Stoudenmire, please reach out to either of us for questions, comments, issues, or suggestions (or raise issues on a particular repository).

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  1. ITensors.jl ITensors.jl Public

    A Julia library for efficient tensor computations and tensor network calculations. ITensors.jl is supported by the Simons Foundation's Flatiron Institute.

    Julia 636 132

  2. ITensorMPS.jl ITensorMPS.jl Public

    MPS and MPO methods based on ITensor (ITensors.jl). ITensorMPS.jl is supported by the Simons Foundation's Flatiron Institute.

    Julia 67 21

  3. ITensorGaussianMPS.jl ITensorGaussianMPS.jl Public

    Julia 4 2

  4. ITensorNetworks.jl ITensorNetworks.jl Public

    A package with general tools for working with higher-dimensional tensor networks based on ITensor.

    Julia 108 23

  5. ITensorWebsite ITensorWebsite Public

    New ITensor website (https://itensor.org)

    CSS 2 2

  6. ITensor ITensor Public

    A C++ library for efficient tensor network calculations

    C++ 388 169

Repositories

Showing 10 of 82 repositories
  • ITensorDocsNext Public

    Documentation for an in-progress rewrite of the ITensor ecosystem. ITensor is supported by the Simons Foundation's Flatiron Institute.

    ITensor/ITensorDocsNext’s past year of commit activity
    Julia 0 Apache-2.0 0 0 0 Updated Dec 21, 2025
  • ITensorDocs Public

    ITensor Julia ecosystem documentation. ITensor is supported by the Simons Foundation's Flatiron Institute.

    ITensor/ITensorDocs’s past year of commit activity
    Julia 0 Apache-2.0 0 0 0 Updated Dec 21, 2025
  • ITensorNetworksNext.jl Public

    A rewrite of ITensorNetworks.jl based on ITensorBase.jl/NamedDimsArrays.jl.

    ITensor/ITensorNetworksNext.jl’s past year of commit activity
    Julia 1 Apache-2.0 3 0 7 Updated Dec 20, 2025
  • ITensorRegistry Public

    Local Julia registry for in-progress and unreleased packages

    ITensor/ITensorRegistry’s past year of commit activity
    3 2 2 1 Updated Dec 19, 2025
  • GradedArrays.jl Public
    ITensor/GradedArrays.jl’s past year of commit activity
    Julia 1 Apache-2.0 1 0 3 Updated Dec 18, 2025
  • NamedGraphs.jl Public

    Extension of `Graphs.jl` to graphs with named vertices.

    ITensor/NamedGraphs.jl’s past year of commit activity
    Julia 9 Apache-2.0 4 20 2 Updated Dec 18, 2025
  • SparseArraysBase.jl Public

    Multidimensional sparse array library. SparseArraysBase.jl is supported by the Simons Foundation's Flatiron Institute.

    ITensor/SparseArraysBase.jl’s past year of commit activity
    Julia 1 Apache-2.0 1 8 1 Updated Dec 18, 2025
  • TensorNetworkSolvers.jl Public

    Demonstration of a new tensor network solver interface based on AlgorithmsInterface.jl.

    ITensor/TensorNetworkSolvers.jl’s past year of commit activity
    Julia 0 Apache-2.0 0 0 0 Updated Dec 18, 2025
  • TensorAlgebra.jl Public
    ITensor/TensorAlgebra.jl’s past year of commit activity
    Julia 3 Apache-2.0 2 7 0 Updated Dec 18, 2025
  • SerializedArrays.jl Public
    ITensor/SerializedArrays.jl’s past year of commit activity
    Julia 0 Apache-2.0 0 0 0 Updated Dec 18, 2025
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