相干、干扰和可见性

Q1 Arts and Humanities
Quanta Pub Date : 2019-05-02 DOI:10.12743/quanta.v8i1.87
T. Qureshi
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引用次数: 38

摘要

对一个量子所观察到的穿过多个路径的干涉,被认为表征了它的波的性质。传统上,干涉的清晰度是通过其可见性或对比度来量化的,如光学中所定义的那样。基于这种可见性,推导了双径干涉的波粒二象性关系。然而,当我们将这种情况推广到多径干扰时,我们发现传统的干扰可见性并不是一个很好的量词。最近引入的量子相干测量已被证明是波性质的一个很好的量词。量子相干的主题,与量子的波动性质和干涉可见性,在这里进行了审查。本文认为,如果以不同的方式测量干涉可见性,相干性可以被解释为干涉可见性的一种更一般的形式,而不是作为对比。广达2019;8:巢族。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Coherence, Interference and Visibility
The interference observed for a quanton, traversing more than one path, is believed to characterize its wave nature. Conventionally, the sharpness of interference has been quantified by its visibility or contrast, as defined in optics. Based on this visibility, wave-particle duality relations have been formulated for two-path interference. However, as one generalizes the situation to multi-path interference, it is found that conventional interference visibility is not a good quantifier. A recently introduced measure of quantum coherence has been shown to be a good quantifier of the wave nature. The subject of quantum coherence, in relation to the wave nature of quantons and to interference visibility, is reviewed here. It is argued that coherence can be construed as a more general form of interference visibility, if the visibility is measured in a different manner, and not as contrast.Quanta 2019; 8: 24–35.
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来源期刊
Quanta
Quanta Arts and Humanities-History and Philosophy of Science
CiteScore
1.30
自引率
0.00%
发文量
5
审稿时长
12 weeks
期刊介绍: Quanta is an open access academic journal publishing original research and review articles on foundations of quantum mechanics, mathematical physics and philosophy of science.
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