PickVidsHow big is a visible photon?
推荐理由
I like this one for the approachable and intuitive explanation
说明
这是2021年由Huygens Optics发布的一部讲解，主题归在Quantum physics。它讲的是photon size and coherence这一支里的具体问题，而不是把整个领域扫一遍。适合已经能看懂基本术语、想继续往下走的人。内容上可以概括成：Huygens Optics shows through a laser interference experiment that the question of a photon's size is really about coherence length. It argues that photons exist as energy exchanges between radiation and matter, not as little particles in free space.这些读者给出的理由，核心是：HN recommends it as an approachable, intuitive explanation of why visible photons can be surprisingly large, from a channel known for practical optics.讲法不绑某一条新闻，过几年仍然可以当材料看。从2021年到2025年，有3位不同的读者在3个不同月份把它推荐出来，其中明确叫别人去看的有0次。适合用一集把一个概念补上的人。抓住它用的那个图像或类比，比背公式重要。如果已经会了基本定义，就把注意力放在它怎么把photon size and coherence变成能跟着复述的例子。
视频信息
- 频道
- Huygens Optics
- 时长
- 20 分 34 秒
- 发布年份
- 2021
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