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Doctoral Thesis
DOI
https://doi.org/10.11606/T.43.2007.tde-17122007-122342
Document
Author
Full name
Fernando Teixeira da Silva Filho
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2007
Supervisor
Committee
Silva, Adilson Jose da (President)
Brandt, Fernando Tadeu Caldeira
Frenkel, Josif
Nascimento, Jose Roberto Soares do
Pinto, Marcus Venicius Cougo
Title in Portuguese
Estudo do modelo CPN-1em (2+1)D não comutativo supersimétrico com o campo básico na representação fundamental
Keywords in Portuguese
Física Matemática
Física Teórica
Teoria Quântica de Campos
Teorias não Comutativas
Teorias Supersimétricas.
Abstract in Portuguese
Nesta tese estudamos o modelo CP^(N-1) em (2+1) dimensões do espaco-tempo, onde o campo básico está na representacão fundamental. Diferentemente do caso em que o campo básico está na representacão adjunta, já estudado na literatura, o modelo por nós estudado se reduz ao modelo supersimétrico usual no limite comutativo. Analisamos a estrutura de fase e calculamos as correcões dominantes e subdominantes na expansão 1/N. Provamos que a teoria é livre de singularidades infravermelhas não integráveis e é renormalizável na ordem dominante. A funcão de vértice de dois pontos do campo básico é calculada e renormalizada de uma forma explicitamente supersimétrica na ordem subdominante.
Title in English
Study of the (2+1)D noncommutative supersymmetric CP^(N-1) model with the basic field in the fundamental representation.
Keywords in English
Mathematical Physics
Noncommutative Theories
Quantum Field Theory
Supersymmetric Theories.
Theoretical Physics
Abstract in English
In this thesis we sutudy the noncommutative supersymmetric CP^(N-1) model in (2+1) space-time dimensions, where the basic field is in the fundamental representation which, differently to the adjoint representation already studied in the literature, goes to the usual supersymmetric model in the commutative limit. We analyse the phase structure of the model and calculate the leading and subleading corrections in the 1/N expansion. We prove that the theory is free of non-integrable IR/UV infrared singularities and is renormalizable in the leading order. The two point vertex function of the basic field is also calculated and renormalized in an expliciitly supersymmetic way up to subleading order.
 
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Publishing Date
2008-03-24
 
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