论文标题
一种最佳测量策略，以击败相关系统中的量子不确定性
An optimal measurement strategy to beat the quantum uncertainty in correlated system
论文作者
论文摘要
不确定性原理是量子系统的固有性质，它破坏了不兼容的可观察到的精确度量，因此量子理论的应用。纠缠是量子物理学的另一个独特特征，可能有助于减少量子不确定性。在本文中，我们提出了一种实用方法，以通过确定对另一方的纠缠二分制系统的测量来减少一个方测量不确定性。鉴于这种方法，构建了量子记忆存在的有条件多数化不确定性关系的家族，这适用于任意数量的可观察数量。不确定性关系的新家族意味着通常通过使用标量测量来研究量子不确定性和非局部性的复杂结构。还提出了减少局部不确定性并见证量子非定位的应用。
Uncertainty principle is an inherent nature of quantum system that undermines the precise measurement of incompatible observables and hence the applications of quantum theory. Entanglement, another unique feature of quantum physics, was found may help to reduce the quantum uncertainty. In this paper, we propose a practical method to reduce the one party measurement uncertainty by determining the measurement on the other party of an entangled bipartite system. In light of this method, a family of conditional majorization uncertainty relations in the presence of quantum memory is constructed, which is applicable to arbitrary number of observables. The new family of uncertainty relations implies sophisticated structures of quantum uncertainty and nonlocality, that were usually studied by using scalar measures. Applications to reduce the local uncertainty and to witness quantum nonlocalities are also presented.
