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 analyze the robustness of this hitherto unexplored domain of self-testing of measurements.

中文翻译：

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既不需要纠缠也不需要任何尺寸限制的二元泡利测量的自测

从未知供应商接收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。自测试协议的设计目的是在一组最小假设下从观察到的统计数据中验证量子组件。在这里，我们提出了一种自测试协议，用于证明使用 Leggett-Garg 不等式的违反的二元泡利测量。基于时间相关性的场景不需要纠缠，这是一种昂贵且脆弱的资源。此外，与之前在准备和测量场景中提出的自测试协议不同，我们的方法既不需要尺寸限制，也不需要对测量类型进行其他严格的假设。我们进一步分析了这个迄今为止尚未探索的测量自测领域的稳健性。