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@quantumlib

quantumlib

Google's open-source software for the quantum world.

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  1. Cirq Cirq Public

    Python framework for creating, editing, and invoking Noisy Intermediate-Scale Quantum (NISQ) circuits.

    Python 4.7k 1.1k

  2. Qualtran Qualtran Public

    Qᴜᴀʟᴛʀᴀɴ is a Python library for expressing and analyzing Fault Tolerant Quantum algorithms.

    Python 247 78

  3. qsim qsim Public

    Fast C++ and Python library for state-vector simulation of quantum circuits.

    C++ 602 184

  4. OpenFermion OpenFermion Public

    Python package for compiling and analyzing quantum algorithms to simulate electronic structures.

    Python 1.6k 401

  5. Stim Stim Public

    A fast stabilizer circuit library.

    C++ 561 162

  6. ReCirq ReCirq Public

    Python modules for quantum computing applications and experiments using Cirq. Research using Cirq!

    Python 292 125

Repositories

Showing 10 of 18 repositories
  • Cirq Public

    Python framework for creating, editing, and invoking Noisy Intermediate-Scale Quantum (NISQ) circuits.

    quantumlib/Cirq’s past year of commit activity
    Python 4,724 Apache-2.0 1,143 131 (20 issues need help) 31 Updated Oct 13, 2025
  • tesseract-decoder Public

    Search-based decoder for quantum error correction (QEC) written in C++ and Python.

    quantumlib/tesseract-decoder’s past year of commit activity
    C++ 81 Apache-2.0 17 11 20 Updated Oct 13, 2025
  • OpenFermion Public

    Python package for compiling and analyzing quantum algorithms to simulate electronic structures.

    quantumlib/OpenFermion’s past year of commit activity
    Python 1,627 Apache-2.0 401 46 (6 issues need help) 14 Updated Oct 13, 2025
  • chromobius Public

    Open-source implementation of a "mobius decoder" for color codes used in quantum error correction (QEC)

    quantumlib/chromobius’s past year of commit activity
    Python 21 Apache-2.0 5 6 11 Updated Oct 13, 2025
  • Qualtran Public

    Qᴜᴀʟᴛʀᴀɴ is a Python library for expressing and analyzing Fault Tolerant Quantum algorithms.

    quantumlib/Qualtran’s past year of commit activity
    Python 247 Apache-2.0 78 212 36 Updated Oct 13, 2025
  • OpenFermion-PySCF Public

    OpenFermion plugin to interface with the electronic structure package PySCF.

    quantumlib/OpenFermion-PySCF’s past year of commit activity
    Python 111 Apache-2.0 43 11 (1 issue needs help) 1 Updated Oct 13, 2025
  • OpenFermion-Psi4 Public

    OpenFermion plugin to interface with the electronic structure package Psi4.

    quantumlib/OpenFermion-Psi4’s past year of commit activity
    Python 87 LGPL-3.0 46 3 0 Updated Oct 13, 2025
  • OpenFermion-FQE Public

    The Fermionic Quantum Emulator (FQE) is a fermionic simulation research tool specializing in quantum circuits emulating fermion dynamics.

    quantumlib/OpenFermion-FQE’s past year of commit activity
    Python 66 Apache-2.0 27 13 1 Updated Oct 13, 2025
  • qsim Public

    Fast C++ and Python library for state-vector simulation of quantum circuits.

    quantumlib/qsim’s past year of commit activity
    C++ 602 Apache-2.0 184 50 7 Updated Oct 11, 2025
  • ReCirq Public

    Python modules for quantum computing applications and experiments using Cirq. Research using Cirq!

    quantumlib/ReCirq’s past year of commit activity
    Python 292 Apache-2.0 125 13 (13 issues need help) 3 Updated Oct 9, 2025

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