论文标题
通过实验性地排除基于运营完整性的共同现实
Experimentally ruling out joint reality based on operational completeness
论文作者
论文摘要
物理体系的可观察物种是否承认真实价值对于对自然的深刻理解至关重要。在这项工作中，我们报告了一项与设备无关的实验，以确认单个两级系统上两个可观察到的共同现实与操作完整性的假设不相容，这严格弱于制备非上下文性。我们在被困的$^{171} {\ rm yb}^{+} $ ion上实现了两个可观察到的物品，以通过违反从线性和非线性标准得出的某些不等式来测试这种不兼容。此外，通过引入一个高度可控制的除多通道，我们表明非线性标准在噪声方面更强大。我们的结果推动了基本限制来描述量子古典边界，并为在其他情况下探索相关问题铺平了道路。
Whether the observables of a physical system admit real values is of fundamental importance to a deep understanding of nature. In this work, we report a device-independent experiment to confirm that the joint reality of two observables on a single two-level system is incompatible with the assumption of operational completeness, which is strictly weaker than that of preparation noncontextuality. We implement two observables on a trapped $^{171}{\rm Yb}^{+}$ ion to test this incompatibility via violation of certain inequalities derived from both linear and nonlinear criteria. Moreover, by introducing a highly controllable dephasing channel, we show that the nonlinear criterion is more robust against noise. Our results push the fundamental limit to delineate the quantum-classical boundary and pave the way for exploring relevant problems in other scenarios.
