Artigo
Exact solutions to Elko spinors in spatially flat Friedmann-Robertson-Walker spacetimes
Registro en:
Journal Of Cosmology And Astroparticle Physics. Bristol: Iop Publishing Ltd, n. 3, 16 p., 2014.
1475-7516
10.1088/1475-7516/2014/03/009
WOS:000333667900009
Autor
Hoff da Silva, J. M. [UNESP]
Pereira, S. H. [UNESP]
Resumen
In this paper we present exact solutions to the so-called Elko spinors for three models of expanding universe, namely the de Sitter, linear and the radiation type evolution. The study was restricted to flat, homogeneous and isotropic Friedmann-Robertson-Walker backgrounds. Starting with an Elko spinor we present the solutions for these cases and compare to the case of Dirac spinors. Besides, an attempt to use Elko spinors as a dark energy candidate in the cosmological context is investigated. Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Univ Estadual Paulista UNESP, Dept Quim & Fis, BR-12516410 Guaratingueta, SP, Brazil Univ Estadual Paulista UNESP, Dept Quim & Fis, BR-12516410 Guaratingueta, SP, Brazil CNPq: 477872/2010-7 CNPq: 482043/2011-3 CNPq: 308623/2012-6