Catalyst
Catalyst: a Python JIT compiler for auto-differentiable hybrid quantum programs - Published in JOSS (2024)
quimb
quimb: A python package for quantum information and many-body calculations - Published in JOSS (2018)
toqito -- Theory of quantum information toolkit
toqito -- Theory of quantum information toolkit: A Python package for studying quantum information - Published in JOSS (2021)
The Walrus
The Walrus: a library for the calculation of hafnians, Hermite polynomials and Gaussian boson sampling - Published in JOSS (2019)
qiskit
Qiskit is an open-source SDK for working with quantum computers at the level of extended quantum circuits, operators, and primitives.
cirq
Python framework for creating, editing, and invoking Noisy Intermediate-Scale Quantum (NISQ) circuits.
PhotonWeave
PhotonWeave - Published in JOSS (2025)
QuaCa
QuaCa: an open-source library for fast calculations of steady-state quantum friction - Published in JOSS (2023)
qsim
Fast C++ and Python library for state-vector simulation of quantum circuits.
Bloch: a strongly typed, hardware-agnostic, hybrid quantum programming language
Bloch: a strongly typed, hardware-agnostic, hybrid quantum programming language - Published in JOSS (2026)
QComms QKD Software Toolkit
QComms QKD Software Toolkit - Published in JOSS (2019)
tensorcircuit
Tensor network based quantum software framework for the NISQ era
openfermion
Python package for compiling and analyzing quantum algorithms to simulate electronic structures.
mpskit.jl
A Julia package dedicated to simulating quantum many-body systems using Matrix Product States (MPS)
QuantumOptics
Library for the numerical simulation of closed as well as open quantum systems.
qsharp
Azure Quantum Development Kit, including the Q# programming language, resource estimator, and Quantum Katas
quantum-gates
Noisy Quantum Gates model for simulating the noise of quantum devices.
pennylane
PennyLane is a cross-platform Python library for quantum computing, quantum machine learning, and quantum chemistry. Built by researchers, for research.
libcommute
A quantum operator algebra domain-specific language and exact diagonalization toolkit for C++11/14/17
https://github.com/agnostiqhq/covalent
Pythonic tool for orchestrating machine-learning/high performance/quantum-computing workflows in heterogeneous compute environments.
cuda-quantum
C++ and Python support for the CUDA Quantum programming model for heterogeneous quantum-classical workflows
qclib
Qclib is a quantum computing library implemented using qiskit. The focus of qclib is on preparing quantum states, but it is not limited to that.
https://github.com/juliaquantumcontrol/krotov.jl
Julia implementation of Krotov's method for quantum optimal control
https://github.com/agnostiqhq/covalent-aws-plugins
Executor plugins interfacing Covalent with various AWS compute platforms
https://github.com/compwa/expertsystem
Rule based particle reaction problem solver on a quantum number level
https://github.com/aryashah2k/quantum-computing-collection-of-resources
A Well Maintained Repository On Quantum Computing Resources [Code+Theory] Updated Regularly During My Time At IBM, Qubit x Qubit And The Coding School's Introduction To Quantum Computing Course '21
https://github.com/aspuru-guzik-group/qtorch
qTorch (Quantum Tensor Contraction Handler) https://arxiv.org/abs/1709.03636 -> for quantum simulation using tensor networks
https://github.com/cloudslab/qfaas
QFaaS - A Serverless Function-as-a-Service Framework for Quantum Computing
https://github.com/darkstarstrix/qsolvers
The Swiss Army Knife of Applied Quantum Technology
https://github.com/cloudslab/iquantum
iQuantum - A Toolkit for Modelling and Simulation of Quantum Computing Environments
https://github.com/aspects-quantum/tflucn_tedopa
This is a package for calculating FLUCTUATIONS of heat transfer in the Spin-Boson model using the Time Evolving Density matrices using Orthogonal Polynomial Algorithm (TEDOPA).
tesseract-decoder
Search-based decoder for quantum error correction (QEC) written in C++ and Python.
qualtran
Qᴜᴀʟᴛʀᴀɴ is a Python library for expressing and analyzing Fault Tolerant Quantum algorithms.
https://github.com/agnostiqhq/covalent_tutorials_ieee_2023
Tutorial notebooks for QCE at IEEE 2023 in Bellevue, Washington
https://github.com/ashtonsbradley/vortexdistributions.jl
Fast accurate creation, detection and analysis of quantum vortex distributions.
https://github.com/cqcl/quixer
Code repository for the preprint "Quixer: A Quantum Transformer Model"
nbed
Python package to reduce the qubit requirements of quantum simulation by embedding into DFT.
py-ste
A Python package for evolving states under the Schrödinger equation using first-order Suzuki-Trotter and computing switching functions.
https://github.com/comp-physics/qlbm-frugal
A resource frugal quantum lattice Boltzmann method
pypi-qiskit-connector
Qiskit connector is quantum computing SDK extension which is a helper for Qiskit runtime service that streamlines authentication, plan detection, and backend selection for quantum computing algorithms. using Qiskit connector intelligence Core.
active-time-hypothesis
Reimagining Quantum Non-Locality: Simulating Entangled Systems with the Active Time Hypothesis
qrack
Comprehensive, GPU accelerated framework for developing universal virtual quantum processors
qc-cugbasis
High performance CUDA/Python library for computing quantum chemistry density-based descriptors for larger systems using GPUs.
suzuki-trotter-evolver
A C++ header-only library for evolving states under the Schrödinger equation using first-order Suzuki-Trotter and computing switching functions.
https://github.com/argonne-lcf/chemgraph
Agentic framework for computational chemistry and materials science workflows
https://github.com/open-quantum-platform/openqp
The main repository of Open Quantum Platform (OpenQP) maintained by Choi Group at KNU.
quantum-state-tomography-with-classical-shadows-from-scratch
A step-by-step implementation of quantum state tomography protocol with classical shadows.
https://github.com/agnostiqhq/quantum-variational-rewinding
Covalent demonstration of the QVR algorithm using a cryptocurrency time series use case
https://github.com/albertnieto/quantum-logic-gates-exercises
Quantum Logic Gates exercises - Bell states, quantum addition, and teleportation algorithm implementation in Python using QISKit Quantum Lab.
lepton
Lepton is an educational collection of quantum simulators designed to run on small devices.
sympt
Symbolic Perturbation Theory (SymPT) is a Python package for symbolic perturbative transformations on quantum systems. SymPT helps compute effective Hamiltonians for both time-independent and time-dependent systems at both operator and matrix level.
https://github.com/awslabs/the-qubit-factory
A puzzle/construction game about quantum computing.
https://github.com/benjamindecker/quantum-cellular-automaton
A classical simulation of quantum cellular automata
frustrated_quantum_convolutional_kernels
Magnetic frustration as a conceptual guide to quantum algorithm design
scalarstack
A harmonic symbolic framework for scalar geometry, recursive physics, and quantum emergence.
https://github.com/ashtonsbradley/ashtonsbradley.github.io
Quantum Fluids Group @ Otago
qst
A public Python package to perform quantum state tomography through maximum likelihood estmation
https://github.com/ashtonsbradley/anzsup19_stochastic
pomerol
Exact diagonalization, Lehmann's representation, Two-particle Green's functions
active-time-hypothesis2
The Active Time Hypothesis: Unveiling Temporal Dynamics in Quantum Entanglement
extra-dimensional-muon-anomalies
Quantum Simulation of Extra-Dimensional Contributions to Muon Anomalies
lightworks
Lightworks is an open-source Python SDK for photonic quantum computing.
thereminq-tensors
ThereminQ Tensors - Quant/AgentOPS - run diverse GPU / HPC enabled Quantum Jupyter notebooks; Shors' and QI derivatives in a WebUI
unitary
API library providing common operations for adding quantum behaviors to games.