Explore our
quantum software

Our software stack includes open source tools and a quantum computing service to develop novel quantum algorithms.

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Programming framework

Cirq, our open source framework, is specifically designed for developing novel quantum algorithms for near-term quantum computers.

Framework

Cirq

An open-source quantum framework for building and experimenting with noisy intermediate scale quantum (NISQ) algorithms on near-term quantum processors
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Quantum Virtual Machine

Run your program on a virtual grid on a simulated Google quantum processor
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Featured libraries and extensions

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Library

OpenFermion

An open-source platform for translating problems in chemistry and materials science into quantum circuits that can be executed on existing platforms.
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Library

TensorFlow Quantum

TensorFlow Quantum (TFQ) is a quantum machine learning library for rapid prototyping of hybrid quantum-classical ML models from within TensorFlow.
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Library

qsim

A powerful quantum circuit simulator that integrates with Cirq.
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3rd-party extension

Pennylane

The PennyLane-Cirq plugin integrates the Cirq quantum computing framework with PennyLane's quantum machine learning capabilities.
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3rd-party extension

Alpine Quantum Technologies

AQT provides trapped ion quantum devices, and can be programmed directly from Cirq
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3rd-party extension

Pasqal

Pasqal provides a neutral atom quantum computing device, and can be programmed directly from Cirq.
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Resources

Our focused and responsible approach

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Educational resources

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GitHub repositories: Quantumlib

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Technical questions: Stack Exchange

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Community

We are dedicated to cultivating an open and inclusive community to build software for near term quantum computers, and we welcome contributions from the community.

Join our weekly open source meetings

We host virtual open source meetings every week. Join our email lists to get invited to the ongoing open source meetings relevant to your work.

Cirq Weekly Sync

Subscribe: cirq-dev

OpenFermion Weekly Sync

Subscribe: openfermion-dev

TensorFlow Quantum Weekly Sync

Subscribe: tfq-dev

Quantum Circuit Simulation Weekly Sync

Subscribe: qsim-qsimh-dev

Contribute to open source code

Whether you are a researcher who wants to push the boundaries of what's available for NISQ computers, a software engineer, a technical writer, or a student who is excited about quantum computing, we welcome your contributions to our open source code available on GitHub.

Getting started

If you are looking for something to help out in Cirq, see the list of good first issues to get started.

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Request for comment

For larger features, check out our RFC process to learn how to contribute.

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Discover our research

We’re working to solve near-term problems both theoretical and practical through advances in quantum computing research.

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