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  1. J

    Perturbation Theory Formulas

    Thank you very much for the suggestion. I am working with a non-degenerate case so I'll take a look.
  2. J

    Perturbation Theory Formulas

    Does anybody happen to know where to find the perturbation theory formulas for the energies and states up to fourth order? I have to do a calculation up to this order and don't want to have to derive them if I don't have to (I know that Wikipedia has high order energies, but they only have the...
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