We introduce Mitiq, a Python package for error mitigation on noisy quantum computers. Error mitigation techniques can reduce the impact of noise on near-term quantum computers with minimal overhead in quantum resources by relying on a mixture of quantum sampling and classical post-processing techniques. Mitiq is an extensible toolkit of different error mitigation methods, including zero-noise extrapolation, probabilistic error cancellation, and Clifford data regression. The library is designed to be compatible with generic backends and interfaces with different quantum software frameworks. We describe Mitiq using code snippets to demonstrate usage and discuss features and contribution guidelines. We present several examples demonstrating error mitigation on IBM and Rigetti superconducting quantum processors as well as on noisy simulators.

中文翻译：

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Mitiq：用于在嘈杂的量子计算机上减轻错误的软件包

我们介绍了 Mitiq，这是一个用于在嘈杂的量子计算机上减轻错误的 Python 包。通过依赖量子采样和经典后处理技术的混合，错误缓解技术可以以最小的量子资源开销来减少噪声对近期量子计算机的影响。Mitiq 是不同错误缓解方法的可扩展工具包，包括零噪声外推、概率错误消除和 Clifford 数据回归。该库旨在与通用后端兼容，并与不同的量子软件框架接口。我们使用代码片段来描述 Mitiq 以演示用法并讨论功能和贡献指南。我们提供了几个示例，展示了 IBM 和 Rigetti 超导量子处理器以及噪声模拟器上的错误缓解。