• Estrutura dos diagramas de fases de um modelo de filmes finos via métodos de Monte Carlo 

      Mallio, Daniel de Oliveira (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Física - PPGF, , 17/12/2010)
      Multilayer systems consisting of magnetic layers of heterostructures can have a variety of magnetic phases - those dependent on factors such as the exchange parameters, the geometry of the material, the temperature T to ...
    • Processos estocásticos de reação e difusão na rede e cadeias quânticas 

      Mendonça, José Ricardo Gonçalves de (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Física - PPGF, , 02/06/2000)
      In this work we investigate some reaction-difusion stochastic processes on the lattice. In particular, we determine the universality classes of critical behavior of a nonequilibrium surface growth process and of the basic ...
    • Estudos sobre as equações de Bethe 

      Vieira, Ricardo Soares (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Física - PPGF, Câmpus São Carlos, 15/05/2015)
      In this dissertation we made an analytic study of the Bethe Ansatz equations for the XXZ six vertex model with periodic boundary conditions. We had show that the Bethe Ansatz equations deduced from the algebraic and ...
    • Termodinâmica de modelos integráveis 

      Tavares, Thiago Silva (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Física - PPGF, , 20/01/2014)
      In this work we study the thermodynamics of integrable spin chains, like the Heisenberg model and it's spin-s generalization with competing interactions. We have used the quantum transfer matrix approach and obtained a ...
    • Estudo de ondas viajantes não lineares de perfil saturado 

      Souza, Rubens Gamaliel Bergamo de (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Física - PPGF, , 29/04/2013)
      In this paper, we study a class of nonlinear waves in one dimension using the assumption of traveling waves. First we found the solutions to the partial differential equation (PDE) containing a term of nonlinear inhomogeneity, ...