论文标题
在恒星网络方案中共享量子非局部性
Sharing Quantum Nonlocality in Star Network Scenarios
论文作者
论文摘要
铃铛的非局部性与量子物理的基础密切相关，并且在量子关键分布中对安全性问题有重大应用。近年来，贝尔非局部性的共享能力得到了广泛的研究。量子网络状态的非局部性更为复杂。我们首先讨论在单侧或双侧POVM测量下最简单的双向性性的共享能力，并表明单方面测量下网络量子状态的非局部性共享能力类似于贝尔的非局部性共享能力，但双边测量值不同。对于Star网络方案，我们首次展示了量子网络状态的非局部性共享属性的首次全面结果，该量子网络状态的量子量子量的量子非定量性的共享能力比Bell非局部性更强。
The Bell nonlocality is closely related to the foundations of quantum physics and has significant applications to security questions in quantum key distributions. In recent years, the sharing ability of the Bell nonlocality has been extensively studied. The nonlocality of quantum network states is more complex. We first discuss the sharing ability of the simplest bilocality under unilateral or bilateral POVM measurements, and show that the nonlocality sharing ability of network quantum states under unilateral measurements is similar to the Bell nonlocality sharing ability, but different under bilateral measurements. For the star network scenarios, we present for the first time comprehensive results on the nonlocality sharing properties of quantum network states, for which the quantum nonlocality of the network quantum states has a stronger sharing ability than the Bell nonlocality.
