INVESTIGADORES
SÁNCHEZ Pablo Alejandro
artículos
Título:
INFLATIONARY DARK ENERGY FROM A CONDENSATE OF SPINORS IN A 5D VACUUM
Autor/es:
SÁNCHEZ, PABLO ALEJANDRO; BELLINI, MAURICIO
Revista:
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
Editorial:
WORLD SCIENTIFIC PUBL CO PTE LTD
Referencias:
Año: 2013 vol. 22
ISSN:
0218-2718
Resumen:
What is the physical origin of dark energy? Could this energy be originated by other fields than the inflaton? In this paper, we explore the possibility that the expansion of the universe can be driven by a condensate of spinors. These spinors are free of interactions on five-dimensional (5D) relativistic vacuum in an extended de Sitter spacetime. The extra coordinate is considered as noncompact. After making a static foliation on the extra coordinate, we obtain an effective four-dimensional (4D) (inflationary) de Sitter expansion which describes an inflationary universe. In view of our results, we conclude that the condensate of spinors here studied could be an interesting candidate to explain the presence of dark energy in the early universe.
