• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Master's Dissertation
DOI
10.11606/D.54.1983.tde-11092007-112146
Document
Author
Full name
Valter Luiz Líbero
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 1983
Supervisor
Committee
Felício, José Roberto Drugowich de (President)
Oliveira, Luiz Nunes de
Oliveira, Mário José de
Title in Portuguese
Hamiltoniano de tempo contínuo para o modelo de baxter
Keywords in Portuguese
Modelo de Askin-Teller
Modelo de vértices
Tempo contínuo
Abstract in Portuguese
Nós obtemos o hamiltoniano associado ao modelo de oito vértices simétrico, tomando o limite de tempo contínuo em um modelo equivalente (modelo de Ashkin-Teller). O resultado é um hamiltoniano de Heisenberg com coeficientes Jx , Jy e Jz idênticos àqueles encontrados por Sutherland, na região crítica. A mudança nos operadores é acompanhada explicitamente e a relação entre o operador "crossover" do modelo de Ashkin-Teller e o operador energia do modelo de Baxter é obtida de forma transparente.
Title in English
Time-continuous hamiltoion for the baxter model
Keywords in English
Ashkin-teller model
Time-continuous limit
Vertex model
Abstract in English
We obtain the associated Harniltonian for the symmetric eight-vertex model by taking the time-continuous limit in an equivalent Ashkin-Teller model. The result is a Heisenberg Hamiltonian with coefficients Jx , Jy e Jz identical to those found by Sutherland for choices of the parameters a, b, c and d that bring the model close to the transition. The change in the operators is accomplished explicitly, the relation between the crossover operator for the Ashkin-Teller model and the energy operator for the eight-vertex model being obtained in a transparent form.
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
ValterLibero.pdf (1.85 Mbytes)
Publishing Date
2007-09-13
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
Centro de Informática de São Carlos
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2019. All rights reserved.