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What is an effective field theory?

  1. May 22, 2013 #1
    What is an effective field theory??

    Yeah, there is many information on Internet, but it is a complicated level, they speak about cut-off, top-down, series development without justify limit the coefficients of ignored terms in the development.
    Aren´t there a simple (but rigurous) explanation about this question? A explanation here or a link, it is indifferent for me. The Wikipedia page don´t explain nothing, only names examples about with what interactions it is used, and the "introductions" write downs are for a level very over graduate level.

  2. jcsd
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