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arXiv 1005.3935quant-ph
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量子偏振度

Quantum degrees of polarization

G. Bjork, J. Soderholm, L. L. Sanchez-Soto, A. B. Klimov, I. Ghiu, P. Marian, T. A. Marian

摘要:

我们讨论了量子场偏振度的不同建议。最简单的方法,即通过斯托克斯算子与经典描述直接类比,已知会产生不令人满意的结果。尽管如此,我们认为,这些运营商和他们的属性应该是基本的任何措施的极化。我们比较了替代的量子度,并提出它们对各种状态的排序不同。这是意料之中的,因为尽管这些措施都植根于斯托克斯算子,但它们中的每一个都只能捕捉某些特征。因此,很可能会有几个量子偏振度共存,每一个都有其特定的有用领域。

英文摘要:

We discuss different proposals for the degree of polarization of quantum fields. The simplest approach, namely making a direct analogy with the classical description via the Stokes operators, is known to produce unsatisfactory results. Still, we argue that these operators and their properties should be basic for any measure of polarization. We compare alternative quantum degrees and put forth that they order various states differently. This is to be expected, since, despite being rooted in the Stokes operators, each of these measures only captures certain characteristics. Therefore, it is likely that several quantum degrees of polarization will coexist, each one having its specific domain of usefulness.

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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