标题： 测量后信息与量子态判别的非定域性 显示英文标题

标题： Postmeasurement information and nonlocality of quantum state discrimination

摘要： 在量子态区分中，当最优态区分无法通过局部操作和经典通信实现时，非局域性就会出现。 最近发现，关于包含制备态的子系综的测量后信息可以消除或产生量子态区分中的非局域性。 在这里，我们表明，量子态区分中非局域性的消除或产生可以依赖于由测量后信息提供的子系综的选择。 我们建立了足够的条件，表明消除或产生非局域性取决于由测量后信息提供的子系综的选择。 我们进一步提供了满足这些条件的两体量子态集合来说明我们的结果。 显示英文摘要

摘要： In quantum state discrimination, nonlocality arises when the optimal state discrimination cannot be realized by local operations and classical communication. Recently, it has been found that the postmeasurement information about the subensemble containing the prepared state can annihilate or create nonlocality in quantum state discrimination. Here, we show that annihilation or creation of nonlocality in quantum state discrimination can depend on the choice of subensembles provided by postmeasurement information. We establish sufficient conditions that annihilating or creating nonlocality depends on the choice of subensembles provided by postmeasurement information. We further provide bipartite quantum state ensembles satisfying these conditions to illustrate our results.