The chance that an electron absorbs more than one photon is negligible.

一个电子吸收一个以上的光子的机会是极少的。

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Quantum walk experiments using one photon have been done before and can even be modelled exactly by classical wave physics.

此前做过的单光子量子游走试验甚至可以用经典波动理论解释。

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In the original version of the photoelectric effect, one photon kicks out one electron, like one pool ball smacking into another.

在光电效应的原始版本中，一个光子击出一个电子就像将一个池子里的球中拍打出一个。

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If another photon strikes one of these high-energy electrons, the electron releases two photons that travel together at the same wavelength.

VOA: special.2010.09.01

If I take lambda equals one angstrom, hc/lambda go through hc over lambda, you will discover that the energy of a photon with one angstrom as its wavelength is on the order of 12,400 electron volts.

如果我让波长等于一埃，能量为，你将发现光子的能量,当其波长为1埃的时候,相当于12，400电子伏特。

麻省理工公开课 - 固态化学导论课程节选

And there is a relationship here, and that is that the number of photons absorbed by the metal are related to the number of electrons ejected from the metal. So, in this figure here what I'm actually showing is these little sunshines, which let's say are each one individual photon.

这里有一个关系是，被金属吸收的光子,和被金属逐出的电子是相关的,所以，我展示的这个图,是这些小太阳，我们这里代指每一个独立的光子。

麻省理工公开课 - 化学原理课程节选

Many systems that squeeze out tiny amounts of light do so sometimes with one photon, and other times with two or more.

BBC: Quantum key distribution with single photons

Yet it is surprisingly difficult to reliably produce exactly one photon.

BBC: Quantum key distribution with single photons

One photon in a million comes away with a different frequency from the one that it arrived with because it changes the structure of a chemical bond in one of the plastic's molecules.

ECONOMIST: Recycling