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Master's Dissertation
DOI
https://doi.org/10.11606/D.43.2006.tde-25102006-123125
Document
Author
Full name
Manoel Reinaldo Elias Filho
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2006
Supervisor
Committee
Brandt, Fernando Tadeu Caldeira (President)
Accioly, Antônio José
Gomes, Marcelo Otavio Caminha
Title in Portuguese
"Investigação sobre a interação entre os campos escalar e gravitacional no espaço não comutativo"
Keywords in Portuguese
gráviton
interação
não comutividade
Abstract in Portuguese
A formulação de uma teoria da relatividade geral em espaços não-comutativos tem sido investigada usando-se diferentes abordagens atualmente. Neste contexto, é feita uma revisão do formalismo que descreve a não-comutatividade do espaço-tempo. A seguir, são investigadas as interações entre os campos do gráviton e o bóson escalar, formuladas em um espaço comutativo mostrando-se um método alternativo para reescrever a ação desta interação. Finalmente, utilizando-se este método, obtém-se o termo dominante da ação de interação entre os campos do gráviton e escalar em espaços não-comutativos. Deste modo, somos levados a considerar transformações de coordenadas restritas, com parâmetro infinitesimal "~ 'SOBRE' W "POT.'mü'"(x) tal que " " IND.'mü'"~ 'SOBRE' W "POT.'mü'" = 0. Temos assim a versão não-comutativa da gravidade unimodular
Title in English
On the scalar-graviton interaction in noncommutative space
Keywords in English
graviton
interaction
noncommutative
Abstract in English
The formulation of a general relativity theory on noncommutative spaces has been investigated using many different approaches. In this context, a revision of the formalism that describes noncommutative spacetime is made. Next, the interactions between the fields of graviton and scalar is investigated in a commutative space showing an alternative method to rewrite the action of this interaction. Finally, using this method, one obtains the dominant term of the action of graviton interacting with a scalar particle in a noncomutative space. In this way, we are led to consider restricted transformations with infinitesimal parameter wμ(x), such that, ∂μ ˜ wμ = 0. Thus we have the noncommutative version of unimodular gravity.
 
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eliasfilhoMANOEL.pdf (569.30 Kbytes)
Publishing Date
2006-11-22
 
WARNING: The material described below relates to works resulting from this thesis or dissertation. The contents of these works are the author's responsibility.
  • BRANDT, F., and ELIAS FILHO, M. R. Scalar-graviton interaction in the noncommutative space [doi:10.1103/PhysRevD.74.067704]. Physical Review D [online], 2006, vol. D, p. 067704.
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