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Wilson-renormalization-group approach of the principal chiral model around two dimensions
1999
Physical Review B (Condensed Matter)
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We study the Principal Chiral Ginzburg-Landau-Wilson model around two dimensions within the Local Potential Approximation of an Exact Renormalization Group equation. This model, relevant for the long distance physics of classical frustrated spin systems, exhibits a fixed point of the same universality class that the corresponding Non-Linear Sigma model. This allows to shed light on the long-standing discrepancy between the different perturbative approaches of frustrated spin systems.
doi:10.1103/physrevb.59.6006
fatcat:6lgjt7ebg5gf5ilkqakpj3uj2q