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arXiv 1504.01601quant-ph
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两个纠缠量子态的非定域性没有反常现象

There is no anomaly in the nonlocality of two entangled qutrits

E. A. Fonseca, Fernando Parisio

摘要:

毫无疑问,纠缠和非定域性是不同的资源。人们承认,最大纠缠态和最大程度违反贝尔不等式的态之间的差异是这一点的一个清楚的说明。我们给出了强有力的证据表明,这种异常可能是一个人工制品的措施,已被用来量化非局域性。通过推理,贝尔函数的数值是类似于一个证人,而不是一个量词,我们定义了一个措施的非定域性,并表明,对qutrits和四个级别的系统,最大纠缠对应于最大的非定域性在相同的情况下,引起了差异。

英文摘要:

There is no doubt about the fact that entanglement and nonlocality are distinct resources. It is acknowledged that a clear illustration of this point is the difference between maximally entangled states and states that maximally violate a Bell inequality. We give strong evidence that this anomaly may be an artefact of the measures that have been used to quantify nonlocality. By reasoning that the numeric value of a Bell function is akin to a witness rather than a quantifier, we define a measure of nonlocality and show that, for pairs of qutrits and of four-level systems, maximal entanglement does correspond to maximal nonlocality in the same scenario that gave rise to the discrepancy.

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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