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Why KT phase transition is considered different from a second order phase transition?

  1. Sep 11, 2012 #1
    i cannot see the reason

    what makes KT phase transition different from the ferro-para phase transition of the 2D ising model?
     
  2. jcsd
  3. Sep 11, 2012 #2

    atyy

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    Re: why KT phase transition is considered different from a second order phase transit

    There is no local order parameter in the KT transition, so it's "topological" rather than "symmetry breaking".

    http://www.itp.uzh.ch/~llucas/projects/proseminar.pdf [Broken]
    http://www.phy.cuhk.edu.hk/course/2011-2012/1/phys5510/download/0/Ch11%20KT%20transition.pdf [Broken]
    http://www.mit.edu/~levitov/8.334/notes/XYnotes1.pdf
     
    Last edited by a moderator: May 6, 2017
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