Potts ferromagnet: Transformations and critical exponents in planar hierarchical lattices |
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Authors: | Paulo R. Hauser Evaldo M. F. Curado |
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Affiliation: | (1) Departamento de Fisica, Universidade Federal de Santa Catarina, 88000 Florianópolis, SC, Brazil;(2) Centra Brasileiro de Pesquisas Fisicas-CBPF/CNPq, 22290 Rio de Janeiro, RJ, Brazil |
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Abstract: | We prove that the duality transformation for a Potts ferromagnet on two-rooted planar hierarchical lattices (HL) preserves the thermal eigenvalue. This leads to a relation between the correlation length critical exponents of a HL and its corresponding dual lattice. Using hyperscaling, we show that their specific heat critical exponents coincide. For a smaller class of HL—namely of diamond and tress types—we prove that another transformation also preserves and . |
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Keywords: | Critical exponents hierarchical lattices duality |
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