Multiple observers who independently harvest nonclassical correlations from a single physical system share the system's ability to enable quantum correlations. We show that any number of independent observers can share the preparation contextual outcome statistics enabled by state ensembles in quantum theory. Furthermore, we show that even in the presence of any amount of white noise, there exists quantum ensembles that enable such shared preparation contextuality. The findings are experimentally realised by applying sequential unsharp measurements to an optical qubit ensemble which reveals three shared demonstrations of preparation contextuality.

中文翻译：

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通过非清晰测量在任意数量的观察者之间共享抗噪准备上下文

从单个物理系统中独立获取非经典相关性的多个观察者共享系统启用量子相关性的能力。我们表明，任何数量的独立观察者都可以共享由量子理论中的状态集成启用的准备上下文结果统计数据。此外，我们表明，即使存在任何数量的白噪声，也存在能够实现这种共享准备上下文的量子系综。这些发现是通过将连续非锐化测量应用于光学量子位集合来实验实现的，该集合揭示了准备上下文的三个共享演示。