Pre-release

This release is a pre-release and may not be stable for production use.

This is a development version of Cirq and may be unstable.

For the latest stable release of Cirq see here.

Cirq is a Python library for writing, manipulating, and optimizing quantum circuits and running them against quantum computers and simulators.

Installation and Documentation

Cirq documentation is available at cirq.readthedocs.io.

Documentation for the latest unstable version of cirq (tracks the repository’s master branch; what you get if you pip install cirq-unstable), is available at cirq.readthedocs.io/latest.

Documentation for the latest stable version of cirq (what you get if you pip install cirq) is available at cirq.readthedocs.io/stable.

For the latest news regarding Cirq, sign up to the Cirq-announce email list!

Hello Qubit

A simple example to get you up and running:

import cirq

# Pick a qubit.
qubit = cirq.GridQubit(0, 0)

# Create a circuit
circuit = cirq.Circuit(
    cirq.X(qubit)**0.5,  # Square root of NOT.
    cirq.measure(qubit, key='m')  # Measurement.
)
print("Circuit:")
print(circuit)

# Simulate the circuit several times.
simulator = cirq.Simulator()
result = simulator.run(circuit, repetitions=20)
print("Results:")
print(result)

Example output:

Circuit:
(0, 0): ───X^0.5───M('m')───
Results:
m=11000111111011001000

Feature requests / Bugs / Questions

If you have feature requests or you found a bug, please file them on Github.

For questions about how to use Cirq post to Quantum Computing Stack Exchange with the cirq tag.

How to cite Cirq

Cirq is uploaded to Zenodo automatically. Click on the badge below to see all the citation formats for all versions.

An equivalent BibTex format reference is below for all the versions:

@software{quantum_ai_team_and_collaborators_2020_4062499,
  author       = {Quantum AI team and collaborators},
  title        = {Cirq},
  month        = Oct,
  year         = 2020,
  publisher    = {Zenodo},
  doi          = {10.5281/zenodo.4062499},
  url          = {https://doi.org/10.5281/zenodo.4062499}
}

Cirq Contributors Community

We welcome contributions! Before opening your first PR, a good place to start is to read our guidelines.

We are dedicated to cultivating an open and inclusive community to build software for near term quantum computers. Please read our code of conduct for the rules of engagement within our community.

For real time informal discussions about Cirq, join our cirqdev Gitter channel, come hangout with us!

Cirq Cynque is our weekly meeting for contributors to discuss upcoming features, designs, issues, community and status of different efforts. To get an invitation please join the cirq-dev email list which also serves as yet another platform to discuss contributions and design ideas.

Alpha Disclaimer

Cirq is currently in alpha. We may change or remove parts of Cirq’s API when making new releases. To be informed of deprecations and breaking changes, subscribe to the cirq-announce google group mailing list.

Metadata

Release files for cirq-unstable 0.10.0.dev20201119190440

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Built distribution (wheel)

Table of built distributions (wheels) for cirq-unstable 0.10.0.dev20201119190440
File	Interpreter	ABI	Platform	Reset
cirq_unstable-0.10.0.dev20201119190440-py3-none-any.whl 1.6 MB Nov 19, 2020	Python 3	none	any	Details

Release files / cirq_unstable-0.10.0.dev20201119190440-py3-none-any.whl

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Upload date	Nov 19, 2020
Uploaded using Trusted Publishing? What is trusted publishing?	No
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