论文标题
具有消失的连贯性和最大鲁棒性的上下文性
Contextuality with vanishing coherence and maximal robustness to dephasing
论文作者
论文摘要
广义上下文是用于广泛的通信和信息处理协议的资源。但是，没有连贯性是不可能的，因此可以通过发出噪音来破坏。在这里，我们探讨了与国家歧视相关的情况（对于上下文是资源）的情况下，情境对部分消除噪声的鲁棒性。我们发现，在这种情况下，消失的连贯性足以证明非上下文性的失败，并且我们给出了上下文的证明，该证明是对任意数量的部分倾向噪声的强大证明。这与部分去极化噪声形成鲜明对比，这总是足以破坏情境性。
Generalized contextuality is a resource for a wide range of communication and information processing protocols. However, contextuality is not possible without coherence, and so can be destroyed by dephasing noise. Here, we explore the robustness of contextuality to partially dephasing noise in a scenario related to state discrimination (for which contextuality is a resource). We find that a vanishing amount of coherence is sufficient to demonstrate the failure of noncontextuality in this scenario, and we give a proof of contextuality that is robust to arbitrary amounts of partially dephasing noise. This is in stark contrast to partially depolarizing noise, which is always sufficient to destroy contextuality.
