论文标题
在量子错误校正中学习逻辑保利噪声
Learning logical Pauli noise in quantum error correction
论文作者
论文摘要
量子设备的表征对于它们的实际实施至关重要，但在实验努力和经典后处理中可能是昂贵的。因此，希望仅衡量与特定应用程序相关的信息，并制定几乎不需要额外努力的协议。在这项工作中，我们将重点放在稳定器量子误差校正的背景下的量子计算机的表征上。对于任意稳定器代码，子系统代码和数据综合征代码，我们证明可以在最小的条件下从综合征数据中估算出由Pauli噪声引起的逻辑误差通道。更确切地说，对于任何此类代码，我们表明，只要代码可以纠正噪声，就可以进行估计。
The characterization of quantum devices is crucial for their practical implementation but can be costly in experimental effort and classical postprocessing. Therefore, it is desirable to measure only the information that is relevant for specific applications and develop protocols that require little additional effort. In this work, we focus on the characterization of quantum computers in the context of stabilizer quantum error correction. For arbitrary stabilizer codes, subsystem codes, and data syndrome codes, we prove that the logical error channel induced by Pauli noise can be estimated from syndrome data under minimal conditions. More precisely, for any such code, we show that the estimation is possible as long as the code can correct the noise.
