[](https://github.com/Qiskit-Extensions/circuit-knitting-toolbox/releases) [](https://github.com/Qiskit-Extensions/circuit-knitting-toolbox/releases)  [](https://www.python.org/) [](https://github.com/Qiskit/qiskit)
[](https://qiskit-extensions.github.io/circuit-knitting-toolbox/) [](https://zenodo.org/badge/latestdoi/543181258) [](LICENSE.txt) [](https://pypi.org/project/circuit-knitting-toolbox/) [](https://github.com/Qiskit-Extensions/circuit-knitting-toolbox/actions/workflows/test_latest_versions.yml) [](https://coveralls.io/github/Qiskit-Extensions/circuit-knitting-toolbox?branch=main) # Circuit Knitting Toolbox ### Table of Contents * [About](#about) * [Documentation](#documentation) * [Installation](#installation) * [Deprecation Policy](#deprecation-policy) * [References](#references) * [License](#license) ---------------------------------------------------------------------------------------------------- ### About Circuit Knitting is the process of decomposing a larger quantum circuit into many smaller circuits, executing those circuits on a quantum processor(s), and then knitting their results into a reconstruction of the original circuit's outcome. The toolbox currently contains the following tools: - Circuit Cutting [[1-5]](#references) For a more detailed discussion on circuit cutting, check out our [technical guide](https://qiskit-extensions.github.io/circuit-knitting-toolbox/circuit_cutting/explanation/index.html#overview-of-circuit-cutting). ---------------------------------------------------------------------------------------------------- ### Documentation All CKT documentation is available at https://qiskit-extensions.github.io/circuit-knitting-toolbox/. ---------------------------------------------------------------------------------------------------- ### Installation We encourage installing CKT via ``pip``, when possible. ```bash pip install 'circuit-knitting-toolbox' ``` For information on installing from source, running CKT in a container, and platform support, refer to the [installation instructions](https://qiskit-extensions.github.io/circuit-knitting-toolbox/install.html) in the CKT documentation. ---------------------------------------------------------------------------------------------------- ### Deprecation Policy This project is meant to evolve rapidly and, as such, does not follow [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-extensions.github.io/circuit-knitting-toolbox/release-notes.html). ---------------------------------------------------------------------------------------------------- ### 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). ---------------------------------------------------------------------------------------------------- ### License [Apache License 2.0](LICENSE.txt)