论文标题
二进制保利测量的自我测试既不需要纠缠或任何维度限制
Self-testing of binary Pauli measurements requiring neither entanglement nor any dimensional restriction
论文作者
论文摘要
从未知提供商那里收到的量子设备的表征是任何量子信息处理协议的重要主要任务。自我测试协议是为此目的而设计的，该目的是在一组最小的假设下从观察到的统计数据中证明量子成分。在这里，我们提出了一种自我测试协议，用于使用违反leggett-garg不平等的二进制保利测量值。基于时间相关性的方案不需要纠缠，这是一种昂贵且脆弱的资源。此外，与先前提出的自我测试协议不同，我们的方法不需要维度限制，也不需要对测量类型的其他严格假设。我们进一步分析了该迄今未探索的测量自我测试领域的鲁棒性。
Characterization of quantum devices received from unknown providers is a significant primary task for any quantum information processing protocol. Self-testing protocols are designed for this purpose of certifying quantum components from the observed statistics under a set of minimal assumptions. Here we propose a self-testing protocol for certifying binary Pauli measurements employing the violation of a Leggett-Garg inequality. The scenario based on temporal correlations does not require entanglement, a costly and fragile resource. Moreover, unlike previously proposed self-testing protocols in the prepare and measure scenario, our approach requires neither dimensional restrictions, nor other stringent assumptions on the type of measurements. We further analyse the robustness of this hitherto unexplored domain of self-testing of measurements.
