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How QTF Theory solves the infinite electromagn selfenergy of electron?

  1. Jun 29, 2011 #1
    Please teach me this:
    In classical electrodynamics,the electron with zero radius has infinite electromagnetic selfenergy.How does QTF Theory solve this problem?It seems that this is solved by the renormalization theory.Is that correct?
    Thank you very much in advance.
     
  2. jcsd
  3. Jun 30, 2011 #2
    It seems that we must be admitted the infinity in self energy of electron because we admit the infinity bare charge of electron.The infinity of bare charge leads to the infinity of the self energy.Is that correct?
     
  4. Jun 30, 2011 #3

    A. Neumaier

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    2016 Award

    Yes. After renormalization, the self-energy comes out finite.
     
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