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https://github.com/Qiskit/qiskit-addon-cutting

Reduce width and depth of quantum circuits by cutting gates and wires.
https://github.com/Qiskit/qiskit-addon-cutting

circuit-cutting circuit-knitting python qiskit qiskit-addon quantum-circuit quantum-circuit-cutting quantum-computing

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Reduce width and depth of quantum circuits by cutting gates and wires.

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README 

        





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# Qiskit addon: circuit cutting



### Table of Contents



* [About](#about)

* [Documentation](#documentation)

* [Installation](#installation)

* [Deprecation Policy](#deprecation-policy)

* [References](#references)

* [License](#license)



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### About



[Qiskit addons](https://docs.quantum.ibm.com/guides/addons) are a collection of modular tools for building utility-scale workloads powered by Qiskit.



This package implements circuit cutting.  In this technique, a handful of gates and/or wires are cut, resulting in smaller circuits that are better suited for execution on hardware.  The result of the original circuit can then be reconstructed; however, the trade-off is that the overall number of shots must be increased by a factor exponential in the number of cuts.



For a more detailed discussion on circuit cutting, check out our [technical guide](https://qiskit.github.io/qiskit-addon-cutting/explanation/index.html#overview-of-circuit-cutting).



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### Documentation



All documentation is available at https://qiskit.github.io/qiskit-addon-cutting/.



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### Installation



We encourage installing this package via ``pip``, when possible.



```bash

pip install 'qiskit-addon-cutting'

```



For information on installing from source, running in a container, and platform support, refer to the [installation instructions](https://qiskit.github.io/qiskit-addon-cutting/install.html) in the documentation.



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### Deprecation Policy



We follow [semantic versioning](https://semver.org/) and are guided by the principles in [Qiskit's deprecation policy](https://github.com/Qiskit/qiskit/blob/main/DEPRECATION.md).  We may occasionally make breaking changes in order to improve the user experience.  When possible, we will keep old interfaces and mark them as deprecated, as long as they can co-exist with the new ones.  Each substantial improvement, breaking change, or deprecation will be documented in the [release notes](https://qiskit.github.io/qiskit-addon-cutting/release-notes.html).



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### References



[1] Kosuke Mitarai, Keisuke Fujii, [Constructing a virtual two-qubit gate by sampling single-qubit operations](https://iopscience.iop.org/article/10.1088/1367-2630/abd7bc), New J. Phys. 23 023021.



[2] Kosuke Mitarai, Keisuke Fujii, [Overhead for simulating a non-local channel with local channels by quasiprobability sampling](https://quantum-journal.org/papers/q-2021-01-28-388/), Quantum 5, 388 (2021).



[3] Christophe Piveteau, David Sutter, [Circuit knitting with classical communication](https://arxiv.org/abs/2205.00016), arXiv:2205.00016 [quant-ph].



[4] Lukas Brenner, Christophe Piveteau, David Sutter, [Optimal wire cutting with classical communication](https://arxiv.org/abs/2302.03366), arXiv:2302.03366 [quant-ph].



[5] K. Temme, S. Bravyi, and J. M. Gambetta, [Error mitigation for short-depth quantum circuits](https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.119.180509), Physical Review Letters, 119(18), (2017).

  

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### License

[Apache License 2.0](LICENSE.txt)