Crossing the phantom divide with k-essence in braneworlds

We study a flat three-brane in the presence of a linear k field with nonzero cosmological constant Λ 4 . In this model the crossing of the phantom divide (PD) occurs when the k-essence energy density becomes negative. We show that in the high energy regime the effective equation of state has a resem...

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Guardado en:
Detalles Bibliográficos
Publicado: 2010
Materias:
Braneworlds
k-essence
phantom divide
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02177323_v25_n29_p2469_Chimento
http://hdl.handle.net/20.500.12110/paper_02177323_v25_n29_p2469_Chimento
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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