2012
DOI: 10.1103/physrevd.86.105046
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New class of spin projection operators for 3D models

Abstract: A new set of projection operators for three-dimensional models are constructed. Using these operators, an uncomplicated and easily handling algorithm for analysing the unitarity of the aforementioned systems is built up. Interestingly enough, this method converts the task of probing the unitarity of a given 3D system, that is in general a time-consuming work, into a straightforward algebraic exercise; besides, it also greatly clarifies the physical interpretation of the propagating modes. In order to test the … Show more

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Cited by 9 publications
(6 citation statements)
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“…Some other interesting ways to defined projectors in gravity theories are found in Refs. [83,88,[95][96][97].…”
Section: Remarks and Conclusionmentioning
confidence: 99%
“…Some other interesting ways to defined projectors in gravity theories are found in Refs. [83,88,[95][96][97].…”
Section: Remarks and Conclusionmentioning
confidence: 99%
“…Neste artigo foi abordado o problema da obtenção do propagador da Eletrodinâmica de forma alternativa obtendo o resultado já conhecido na literatura [5][6][7]. Embora o método seja um pouco trabalhoso, este nos oferece uma forma mais rica de realizar este cálculo, uma vez que faz amplo uso dos métodos da álgebra linear, permitindo assim a sua utilização nas matérias de Física ou Matemática elementares como um exemplo de aplicação.…”
Section: Conclusão E Perspectivasunclassified
“…Visto que o método nos oferece uma separação em soma direta de subespaços; será interessante saber se o método pode ter utilidade prática, sendo, por isso, necessário generalizá-lo para obter o propagador do graviton, onde sabe-se que aparecem setores não diagonais no cálculo do propagador [5,7].…”
Section: Conclusão E Perspectivasunclassified
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“…By mean of these projectors Barnes and Rivers have introduced [3] a complete set of spin-projection operators which allows us to determine the particle content of a given rank-two field theory (a slightly different basis is also used by [4]). Some extensions of this set of projectors are given at [5,6] where a new class of projection operators for three-dimensional models are constructed.…”
Section: Introductionmentioning
confidence: 99%