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Meaning of a static EM field

  1. Sep 14, 2010 #1

    How is a static magnetic or electric field understood in terms of QED.

    Is it correct to interpret them as a collection of photons?

    If so, would these photons be real or virtual?

    Thanks in advance.
  2. jcsd
  3. Sep 14, 2010 #2
    Yes. They would be virtual unless the fields were interacting with some other particle/charge.
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