Is it physically sound to add a topologically massive term to three-dimensional massive electromagnetic or gravitational models?
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Data
2006-01-30
Autores
Accioly, A.
Dias, M.
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Editor
World Scientific Publ Co Pte Ltd
Resumo
The addition of a topologically massive term to an admittedly nonunitary three-dimensional massive model, be it an electromagnetic system or a gravitational one, does not cure its nonunitarity. What about the enlargement of avowedly unitary massive models by way of a topologically massive term? the electromagnetic models remain unitary after the topological augmentation but, surprisingly enough, the gravitational ones have their unitarity spoiled. Here we analyze these issues and present the explanation why unitary massive gravitational models, unlike unitary massive electromagnetic ones, cannot coexist from the viewpoint of unitarity with topologically massive terms. We also discuss the novel features of the three-term effective field models that are gauge-invariant.
Descrição
Palavras-chave
topologically massive models, massive electromagnetic models, massive gravitational models, unitarity, effective field models
Como citar
International Journal of Modern Physics A. Singapore: World Scientific Publ Co Pte Ltd, v. 21, n. 3, p. 559-573, 2006.