论文标题

关于互补性和不确定性的互补观点的不确定性观点

An uncertainty view on complementarity and a complementarity view on uncertainty

论文作者

Basso, Marcos L. W., Maziero, Jonas

论文摘要

由于在量子状态下制备的系统的不确定性通常由其方差描述,因此当状态混合时,方差是量子和经典不确定性的混合体。除此之外,互补关系仅适用于纯,单量子,量子状态。对于混合状态,波颗粒量词永远不会使互补关系饱和,甚至最大混合状态甚至可以达到零。因此,为了充分表征定量,不足以考虑其波粒子方面。还必须考虑其与其他系统的相关性。在本文中,我们讨论了量子相关性与局部经典不确定性度量以及量子相干性和量子不确定性量化量之间的关系。我们获得了量子不确定性,经典不确定性和可预测性的完整互补关系。 D-PATHS干涉仪的总量子不确定性表明与Wigner-Yanase相干性相当,相应的经典不确定性被证明是量子相关量词。互补性和不确定性之间的二元性用于得出量子相关度量,以完成$ l_1 $ -norm和$ L_2 $ -NORM相干的互补关系。此外,我们表明Brukner-Zeilinger的不变信息量化了量子的波和粒子特征,并获得了广义Gell Mann矩阵的总和不确定性关系。

Since the uncertainty about an observable of a system prepared in a quantum state is usually described by its variance, when the state is mixed, the variance is a hybrid of quantum and classical uncertainties. Besides that, complementarity relations are saturated only for pure, single-quanton, quantum states. For mixed states, the wave-particle quantifiers never saturate the complementarity relation and can even reach zero for a maximally mixed state. So, to fully characterize a quanton it is not sufficient to consider its wave-particle aspect; one has also to regard its correlations with other systems. In this paper, we discuss the relation between quantum correlations and local classical uncertainty measures, as well as the relation between quantum coherence and quantum uncertainty quantifiers. We obtain a complete complementarity relation for quantum uncertainty, classical uncertainty, and predictability. The total quantum uncertainty of a d-paths interferometer is shown to be equivalent to the Wigner-Yanase coherence and the corresponding classical uncertainty is shown to be a quantum correlation quantifier. The duality between complementarity and uncertainty is used to derive quantum correlations measures that complete the complementarity relations for $l_1$-norm and $l_2$-norm coherences. Besides, we show that Brukner-Zeilinger's invariant information quantifies both the wave and particle characters of a quanton and we obtain a sum uncertainty relation for the generalized Gell Mann's matrices.

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