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Homework Help: Error in Schakel's 'Boulevard of broken symmetries'?

  1. Aug 13, 2010 #1
    I'm working through Schakel's 'Boulevard of broken symmetries' and I don't get an equation connect to the Coulomb gas problem.

    The equation in question is (5.77) on page 161.
    Luckily, you may look it up in http://books.google.com/books?id=OA...EwAQ#v=onepage&q=sine gordon coulomb&f=false".

    I guess I'm missing something obvious but it seems like (5.77) is wrong; e.g. if one calculates both sides for N=2.

    Any ideas?
    Last edited by a moderator: Apr 25, 2017
  2. jcsd
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