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Symmetry in QED

  1. Feb 8, 2014 #1
    I understand that the QED Lagrangian is invariant under the CPT transformation.

    Is it also invariant under C, P or T separately?
     
  2. jcsd
  3. Feb 8, 2014 #2

    samalkhaiat

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    Science Advisor

    Yes it is. In fact, proving that is a lot easier than proving CPT invariance.

    Sam
     
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