<div align="center">
<img width="220px" alt="Cirq logo"
src="https://raw.githubusercontent.com/quantumlib/Cirq/refs/heads/main/docs/images/Cirq_logo_color.svg">
</div>
# cirq-core
[Cirq] is a Python package for writing, manipulating, and running [quantum
circuits](https://en.wikipedia.org/wiki/Quantum_circuit) on quantum computers
and simulators. Cirq provides useful abstractions for dealing with today’s
[noisy intermediate-scale quantum](https://arxiv.org/abs/1801.00862) (NISQ)
computers, where the details of quantum hardware are vital to achieving
state-of-the-art results. For more information about Cirq, please visit the
[Cirq documentation site].
This Python module is `cirq-core`, which contains all the code you need to
write quantum algorithms for NISQ devices and run them on the built-in Cirq
simulators.
To run algorithms on a given quantum computing platform, you will also need to
install an appropriate Cirq hardware interface module. Please visit the
[hardware section of the Cirq documentation
site](https://quantumai.google/cirq/hardware) for information about the
hardware interface modules currently available.
[Cirq]: https://github.com/quantumlib/cirq
[Cirq documentation site]: https://quantumai.google/cirq
## Installation
There are two installation options for the `cirq-core` module:
* To install the stable version of `cirq-core`, use
```shell
pip install cirq-core
```
* To install the latest pre-release version of `cirq-core`, use
```shell
pip install --upgrade cirq-core~=1.0.dev
```
(The `~=` has a special meaning to `pip` of selecting the latest version
compatible with the `1.*` and `dev` in the name. Despite appearances,
this will not install an old version 1.0 release!)
If you would like to install Cirq with all the optional modules, not just
`cirq-core`, then instead of the above commands, use `pip install cirq` for the
stable release or `pip install --upgrade cirq~=1.0.dev` for the latest pre-release
version.
## Documentation
To get started with using Cirq, please refer to the [Cirq documentation site].
For more information about getting help, reporting bugs, and other matters
related to Cirq and the Cirq-Core integration module, please visit the [Cirq
repository on GitHub](https://github.com/quantumlib/Cirq).
## Disclaimer
Cirq is not an official Google product. Copyright 2019 The Cirq Developers.
Raw data
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"description": "<div align=\"center\">\n<img width=\"220px\" alt=\"Cirq logo\"\nsrc=\"https://raw.githubusercontent.com/quantumlib/Cirq/refs/heads/main/docs/images/Cirq_logo_color.svg\">\n</div>\n\n# cirq-core\n\n[Cirq] is a Python package for writing, manipulating, and running [quantum\ncircuits](https://en.wikipedia.org/wiki/Quantum_circuit) on quantum computers\nand simulators. Cirq provides useful abstractions for dealing with today\u2019s\n[noisy intermediate-scale quantum](https://arxiv.org/abs/1801.00862) (NISQ)\ncomputers, where the details of quantum hardware are vital to achieving\nstate-of-the-art results. For more information about Cirq, please visit the\n[Cirq documentation site].\n\nThis Python module is `cirq-core`, which contains all the code you need to\nwrite quantum algorithms for NISQ devices and run them on the built-in Cirq\nsimulators.\n\nTo run algorithms on a given quantum computing platform, you will also need to\ninstall an appropriate Cirq hardware interface module. Please visit the\n[hardware section of the Cirq documentation\nsite](https://quantumai.google/cirq/hardware) for information about the\nhardware interface modules currently available.\n\n[Cirq]: https://github.com/quantumlib/cirq\n[Cirq documentation site]: https://quantumai.google/cirq\n\n## Installation\n\nThere are two installation options for the `cirq-core` module:\n\n* To install the stable version of `cirq-core`, use\n\n ```shell\n pip install cirq-core\n ```\n\n* To install the latest pre-release version of `cirq-core`, use\n\n ```shell\n pip install --upgrade cirq-core~=1.0.dev\n ```\n\n (The `~=` has a special meaning to `pip` of selecting the latest version\n compatible with the `1.*` and `dev` in the name. Despite appearances,\n this will not install an old version 1.0 release!)\n\nIf you would like to install Cirq with all the optional modules, not just\n`cirq-core`, then instead of the above commands, use `pip install cirq` for the\nstable release or `pip install --upgrade cirq~=1.0.dev` for the latest pre-release\nversion.\n\n## Documentation\n\nTo get started with using Cirq, please refer to the [Cirq documentation site].\n\nFor more information about getting help, reporting bugs, and other matters\nrelated to Cirq and the Cirq-Core integration module, please visit the [Cirq\nrepository on GitHub](https://github.com/quantumlib/Cirq).\n\n## Disclaimer\n\nCirq is not an official Google product. Copyright 2019 The Cirq Developers.\n",
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