Universal natures and rich structures in in nite-order phase transitions
نویسنده
چکیده
Here, we do not have to solve any recursion relation or di erential equation explicitly to obtain critical exponents. one has to only diagonarize the scaling matrix at the xed point of RG. On the other hand, in an in nite-order phase transition, the free energy has an essential singularity, and any order derivative of the free energy does not diverge. The correlation length shows strong divergence at the critical point with
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