K-essence and extended tachyons in brane-worlds

We study a k-essence field evolving linearly with the cosmic time and the atypical k-essence model on a homogeneous and isotropic flat 3-brane. We show that the k-field is driven by an inverse quadratic polynomial potential. The solutions represent expanding, contracting or bouncing universes with a...

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Detalles Bibliográficos
Autores principales: Chimento, L.P., Richarte, M.G.
Formato: Documento de conferencia publishedVersion
Lenguaje:Inglés
Publicado: 2010
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_17426588_v229_n_p_Chimento
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