Abstract:
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. © 2005 Elsevier B.V. All rights reserved.
Registro:
Documento: |
Artículo
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Título: | Quintessence as k-essence |
Autor: | Aguirregabiria, J.M.; Chimento, L.P.; Lazkoz, R. |
Filiación: | Fisika Teorikoa, Zientzia Eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea, 644 Posta Kutxatila, 48080 Bilbao, Spain Departamento de Física, Facultad de Ciencias Exactas Y Naturales, Pabellón I, 1428 Buenos Aires, Argentina
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Año: | 2005
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Volumen: | 631
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Número: | 3
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Página de inicio: | 93
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Página de fin: | 99
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DOI: |
http://dx.doi.org/10.1016/j.physletb.2005.10.011 |
Título revista: | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
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Título revista abreviado: | Phys Lett Sect B Nucl Elem Part High-Energy Phys
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ISSN: | 03702693
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CODEN: | PYLBA
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PDF: | https://bibliotecadigital.exactas.uba.ar/download/paper/paper_03702693_v631_n3_p93_Aguirregabiria.pdf |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v631_n3_p93_Aguirregabiria |
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Citas:
---------- APA ----------
Aguirregabiria, J.M., Chimento, L.P. & Lazkoz, R.
(2005)
. Quintessence as k-essence. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 631(3), 93-99.
http://dx.doi.org/10.1016/j.physletb.2005.10.011---------- CHICAGO ----------
Aguirregabiria, J.M., Chimento, L.P., Lazkoz, R.
"Quintessence as k-essence"
. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 631, no. 3
(2005) : 93-99.
http://dx.doi.org/10.1016/j.physletb.2005.10.011---------- MLA ----------
Aguirregabiria, J.M., Chimento, L.P., Lazkoz, R.
"Quintessence as k-essence"
. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 631, no. 3, 2005, pp. 93-99.
http://dx.doi.org/10.1016/j.physletb.2005.10.011---------- VANCOUVER ----------
Aguirregabiria, J.M., Chimento, L.P., Lazkoz, R. Quintessence as k-essence. Phys Lett Sect B Nucl Elem Part High-Energy Phys. 2005;631(3):93-99.
http://dx.doi.org/10.1016/j.physletb.2005.10.011