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Estudo do modelo Blume-Capel através da teoria de campo médio
(Universidade Estadual Paulista (Unesp), 2019-08-13)
Apresenta-se um estudo das transições de fase de um material ferromagnético representado pelo modelo Blume-Capel. A investigação é realizada através da teoria de campo médio implementada através da aproximação de Bethe-Peierls. ...
Tri-critical behavior of the Blume Capel model on a diamond lattice
(Elsevier B.V., 2017-02-01)
The mean field approximation results are obtained in a five-site cluster on the diamond lattice from the Bogoliubov inequality. Spin correlation identities for the Blume-Capel model on diamond lattice are derived from a ...
Estudo do comportamento crítico do Modelo Blume-Capel Spin-1 nas redes aleatórias de Voronoi-Delaunay
(Pós-Graduação em FísicaUniversidade Federal de Sergipe, 2017)
The Yang-Lee zeros of the 1D Blume-Capel model on connected and non-connected rings
(Iop Publishing Ltd, 2005-08-05)
We carry out a numerical and analytic analysis of the Yang-Lee zeros of the ID Blume-Capel model with periodic boundary conditions and its generalization on Feynman diagrams for which we include sums over all connected and ...
The Yang-Lee zeros of the 1D Blume-Capel model on connected and non-connected rings
(Iop Publishing Ltd, 2005-08-05)
We carry out a numerical and analytic analysis of the Yang-Lee zeros of the ID Blume-Capel model with periodic boundary conditions and its generalization on Feynman diagrams for which we include sums over all connected and ...
Estudo de campo médio do modelo de Blume-Capel Spin-2
(Universidade Federal de Mato GrossoBrasilInstituto de Física (IF)UFMT CUC - CuiabáPrograma de Pós-Graduação em Física, 2018-12-18)
In this work we study the Spin-2 Blume-Capel model by using the Bogoliubov variational principle, also known as Gibbs-Bogoliubov inequality. In order to learn the method,
we first applied it to the Spin-1/2 Ising model. ...
The Yang-Lee zeros of the 1D Blume-Capel model on connected and non-connected rings
(Iop Publishing Ltd, 2014)