论文标题
对任何纯正两分之一的纠缠状态的独立自我测试的实验证明
Experimental demonstration of one-sided device-independent self-testing of any pure two-qubit entangled state
论文作者
论文摘要
我们基于细粒度的转向不平等，证明了对任何纯净纠缠的两量态状态的独立于设备的自我测试。最大程度地违反细粒度转向不平等的行为可用于目睹某些可检测的相关性，这证明了所有纯粹的两倍纠缠状态。我们的实验结果确定了哪种特定的纯正纠缠状态已经进行了自测，并且在不受信任的一侧使用了哪些测量算子。此外，我们通过分析得出了协议的鲁棒性结合，从而实现了我们随后通过状态断层扫描对鲁棒性的实验验证。最后，我们确保实验中维持所需的无信号约束。
We demonstrate one-sided device-independent self-testing of any pure entangled two-qubit state based on a fine-grained steering inequality. The maximum violation of a fine-grained steering inequality can be used to witness certain steerable correlations, which certify all pure two-qubit entangled states. Our experimental results identify which particular pure two-qubit entangled state has been self-tested and which measurement operators are used on the untrusted side. Furthermore, we analytically derive the robustness bound of our protocol, enabling our subsequent experimental verification of robustness through state tomography. Finally, we ensure that the requisite no-signalling constraints are maintained in the experiment.
