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Dimension, fluctuations, and phase transitions

  1. Oct 7, 2012 #1
    Hey all,

    I'm reading Chaikin's Principles of Condensed matter, and he's talking about the effect fluctuations have in various systems. He says:

    So I get why order is destroyed in 1D, and not in 2D. But I don't see why they destroy the phase transitions. Can anyone tell me?

  2. jcsd
  3. Oct 7, 2012 #2
    Well if there is no order, how can you have a phase transition?
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