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Why should there be CPT symmetry?

  1. Oct 23, 2011 #1
    A few of the books and magazines I have read talk about maintaining CPT symmetry, but I can't see why it should be the case. What is the evidence, theoretical or experimental, of CPT symmetry?
     
  2. jcsd
  3. Oct 23, 2011 #2

    Bill_K

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    CPT invariance is a rigorous consequence of quantum field theory, assuming only locality and Lorentz invariance. The CPT Theorem is sometimes referred to as Lüder's Theorem. See for example Weinberg, Vol 1, p 245.
     
  4. Oct 23, 2011 #3
    From an experimental point of view, violations of CPT have been searched

    http://rmp.aps.org/abstract/RMP/v83/i1/p11_1
     
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