Primordial dark energy from a condensate of spinors in a 5D vacuum

PABLO ALEJANDRO SÁNCHEZ; MAURICIO BELLINI

Advances in High Energy Physics

Hindawi Publishing Corporation

Lugar: Nasr City; Año: 2013 vol. 2013 p. 789746 - 789753

1687-7365

We explore the possibility that the expansion of the universe can be driven by a condensate of spinors which are free of interactions on a 5D relativistic vacuum defined on an extended de Sitter spacetime which is Riemann-flat. The extra coordinate is considered as noncompact. After making a static foliation on the extra coordinate, we obtain an effective 4D (inflationary) de Sitter expansion which describes an inflationary universe. We found that the condensate of spinors here studied could be an interesting candidate to explain the presence of dark energy in the early universe. The dark energy density which we are talking about is poured into smaller sub-horizon scales with the evolution of the inflationary expansion.