Artículo
Quintessence as k-essence
Fecha de publicación:
12/2005
Editorial:
Elsevier Science
Revista:
Physics Letters B
ISSN:
0370-2693
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Quintessence and k-essence have been proposed as candidates for the dark energy component of the universe that would be responsible of the currently observed accelerated expansion. In this Letter we investigate the degree of resemblance between those two theoretical setups, and find that every quintessence model can be viewed as a k-essence model generated by a kinetic linear function. In addition, we show the true effects of k-essence begin at second order in the expansion of the kinetic function in powers of the kinetic energy.
Palabras clave:
Quintessence
,
K Essence
,
Accelerated Expansion
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Colecciones
Articulos(IFIBA)
Articulos de INST.DE FISICA DE BUENOS AIRES
Articulos de INST.DE FISICA DE BUENOS AIRES
Citación
Aguirregabiria, Juan M.; Chimento, Luis Pascual; Lazkoz, Ruth; Quintessence as k-essence; Elsevier Science; Physics Letters B; 631; 3; 12-2005; 93-99
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