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      Kallen-Lehman approach to 3D Ising model

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          Abstract

          A "Kallen-Lehman" approach to Ising model, inspired by quantum field theory a la Regge, is proposed. The analogy with the Kallen-Lehman representation leads to a formula for the free-energy of the 3D model with few free parameters which could be matched with the numerical data. The possible application of this scheme to the spin glass case is shortly discussed.

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          Journal
          08 January 2007
          Article
          10.1016/j.physletb.2007.01.011
          cond-mat/0701154
          Custom metadata
          Phys.Lett.B646:54-61,2007
          13 pages no figures. Accepted for pubblication on Physics Letters B
          cond-mat.stat-mech cond-mat.dis-nn hep-ph hep-th quant-ph

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