Young's double-slit interference demonstration with single photons

IF 0.8 4区教育学 Q3 EDUCATION, SCIENTIFIC DISCIPLINES

American Journal of Physics Pub Date : 2024-01-04 DOI:10.1119/5.0179131

Bill J. Luo, Leia Francis, Valeria Rodriguez-Fajardo, Enrique J. Galvez, Farbod Khoshnoud

引用次数: 0

Abstract

The interference of single photons going through a double slit is a compelling demonstration of the wave and particle nature of light in the same experiment. Single photons produced by spontaneous parametric down-conversion can be used for this purpose. However, it is particularly challenging to implement this due to coherency and resolution challenges. In this article, we present a table-top laboratory arrangement suitable for the undergraduate instruction laboratory that overcomes these challenges. The apparatus scans a single detector to produce a plot showing the interference patterns of single photons. We include experimental data obtained using this setup, demonstrating double-slit and single-slit interference as well as quantum erasing through the use of sheet polarizers.

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杨氏双缝单光子干涉演示

单光子通过双缝的干涉是在同一实验中对光的波和粒子性质的有力证明。自发参量下变频产生的单光子可用于此目的。然而，由于相干性和分辨率方面的挑战，实现这一目的尤其具有挑战性。在本文中，我们介绍了一种适合本科生教学实验室的台式实验装置，它可以克服这些挑战。该装置可扫描单个探测器，生成显示单光子干涉模式的曲线图。我们引用了使用该装置获得的实验数据，展示了双缝干涉和单缝干涉，以及通过使用片状偏振器实现的量子擦除。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

American Journal of Physics 物理-物理：综合

CiteScore

1.80

自引率

11.10%

发文量

146

审稿时长

3 months

期刊介绍： The mission of the American Journal of Physics (AJP) is to publish articles on the educational and cultural aspects of physics that are useful, interesting, and accessible to a diverse audience of physics students, educators, and researchers. Our audience generally reads outside their specialties to broaden their understanding of physics and to expand and enhance their pedagogical toolkits at the undergraduate and graduate levels.