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Master's Dissertation
DOI
https://doi.org/10.11606/D.43.1998.tde-12052021-184123
Document
Author
Full name
Arnaldo Gomes de Oliveira Filho
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 1998
Supervisor
Committee
Lyra, Jorge Lacerda de (President)
Amaral, Márcia Gonçalves do
Carneiro, Carlos Eugenio Imbassahy
Title in Portuguese
Configurações Topológicas no Modelo Sigma Não Linear SO(2)
Keywords in Portuguese
configurações topológicas
modelo sigma não-linear
rede euclidiana
simulação
teoria quântica de campos
Abstract in Portuguese
Mostramos, por meio de simulações em redes euclideanas finitas e de uma extrapolação para o limite do contnuo, que as configurações quânticas tpicas do modelo Sigma não-linear com simetria SO(2) não apresentam caráter topológico bem definido nas proximidades do ponto crtico, para o qual deve tender qualquer limite do contnuo que possua relevância fsica.
Title in English
rede euclidiana, teoria quântica de campos, modelo sigma não-linear, simulação, configurações topológicas
Keywords in English
euclidean lattice
non-linear sigma model
quantum field theory
simulation
topological configurations
Abstract in English
We show, by means of simulations on finite Euclidean lattices and of an extrapolation to the continuum limit, that the typical configurations of the non-linear Sigma model with SO(2) symmetry do not have well-defined topological character near the critical point, to where any physically relevant continuum limit must tend.
 
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Publishing Date
2021-05-20
 
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