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# 6.3: Electromagnetism


Electro-magnetism, i.e., QED, has been discussed in some detail in the previous chapter. Look there for a discussion. The coupling constant for the theory is $\alpha = \frac{e^2}{4\pi\epsilon_0 \hbar c} .$

This page titled 6.3: Electromagnetism is shared under a CC BY-NC-SA 2.0 license and was authored, remixed, and/or curated by Niels Walet via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request.

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