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Physics LibreTexts

7.2: Electromagnetism

  • Page ID
    15032
  • [ "article:topic", "authorname:nwalet" ]

    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 \[\alpha = \frac{e^2}{4\pi\epsilon_0 \hbar c} .\]