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arXiv 2008.06393quant-phhep-th
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一种表征量子非定域性的有效方法

An Effective Way of Characterizing the Quantum Nonlocality

Ma-Cheng Yang, Jun-Li Li, Cong-Feng Qiao

AI总结:

本研究提出利用广义不确定性原理表征关联系统中不同程度的量子非定域性,将互补性归因于可观测量的相互依赖性,得到三阶偏度非定域性,明确Bell非定域性为二阶方差非定域性,四阶依赖性与量子互文性相关。

摘要:

非定域性是量子理论的一个显著特征,数十年来已得到广泛研究。研究发现,不确定性原理决定了量子力学的非定域性。本文表明,关联系统中不同程度的非定域性可通过广义不确定性原理来表征,该原理将互补性归因于可观测量的相互依赖性。文中给出了与不同阶依赖性相关的各类非经典现象的具体示例。我们得到了三阶“偏度非定域性”,并发现Bell非定域性实际上仅为二阶“方差非定域性”,而四阶依赖性包含对易子平方,因此与量子互文性相关。广义不确定性原理有望得到更多应用。

英文摘要:

Nonlocality is a distinctive feature of quantum theory, which has been extensively studied for decades. It is found that the uncertainty principle determines the nonlocality of quantum mechanics. Here we show that various degrees of nonlocalities in correlated system can be characterized by the generalized uncertainty principle, by which the complementarity is attributed to the mutual dependence of observables. Concrete examples for different kinds of non-classical phenomena pertaining to different orders of dependence are presented. We obtain the third order ``skewness nonlocality'', and find that the Bell nonlocality turns out to be merely the second order ``variance nonlocality'' and the forth order dependence contains the commutator squares, which hence is related to the quantum contextuality. More applications of the generalized uncertainty principle are expected.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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