论文标题
目睹连贯性，非局部性和情境性的不平等现象
Inequalities witnessing coherence, nonlocality, and contextuality
论文作者
论文摘要
量子相干性，非局部性和上下文是在计量，通信和计算中获得量子优势的关键资源。我们介绍了一种基于图形的方法来得出经典性不等式，该方法绑定了本地，非上下文和无连贯的模型，从而对这些看似不同的量子资源提供了统一的描述。我们的方法概括了最近提出的与基础独立的一致性证人，并恢复了排他性图方法的所有非上下文性不平等。此外，违反某些经典性不平等现象的准备背景性。我们描述了一种算法，以发现所有此类古典性不等式，并使用它来分析一些最简单的情况。
Quantum coherence, nonlocality, and contextuality are key resources for quantum advantage in metrology, communication, and computation. We introduce a graph-based approach to derive classicality inequalities that bound local, non-contextual, and coherence-free models, offering a unified description of these seemingly disparate quantum resources. Our approach generalizes recently proposed basis-independent coherence witnesses, and recovers all non-contextuality inequalities of the exclusivity graph approach. Moreover, violations of certain classicality inequalities witness preparation contextuality. We describe an algorithm to find all such classicality inequalities, and use it to analyze some of the simplest scenarios.
