论文标题
量子错误缓解和非马克维亚措施的成本之间的关系
Relationship between costs for quantum error mitigation and non-Markovian measures
论文作者
论文摘要
量子误差缓解（QEM）已被提议作为量子误差校正的替代方法，以补偿量子系统中没有Qubit开销的误差。虽然以前主要考虑过数字量子计算机上的马尔可夫门错误，但必不可少的要讨论QEM和非马克维亚误差之间的关系，因为在大多数固态系统中不可避免地存在非马克维亚噪声效应。在这项工作中，我们调查了非马克维亚噪声的QEM，并表明QEM和非马克维亚措施的成本之间存在明确的关系。作为示例，我们展示了几种非马克维亚噪声模型，以弥合理论框架和具体物理系统之间的差距。这一发现可能有助于设计具有非马克维亚环境的现实量子设备的更好的QEM策略。
Quantum error mitigation (QEM) has been proposed as an alternative method of quantum error correction to compensate errors in quantum systems without qubit overhead. While Markovian gate errors on digital quantum computers have been mainly considered previously, it is indispensable to discuss a relationship between QEM and non-Markovian errors because non-Markovian noise effects inevitably exist in most of the solid-state systems. In this work, we investigate the QEM for non-Markovian noise, and show that there is a clear relationship between costs for QEM and non-Markovian measures. As examples, we show several non-Markovian noise models to bridge a gap between our theoretical framework and concrete physical systems. This discovery may help in designing better QEM strategies for realistic quantum devices with non-Markovian environments.
