K-essence and tachyons in braneworld cosmology
We investigate a k-essence field localized on the brane evolving linearly with the cosmological time for some kinetic functions and consider the atypical k-essence model for linear and nonlinear k-fields in FriedmannRobertsonWalker (FRW) cosmology. In the former case the k-field is driven by an inve...
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| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
| Publicado: |
2011
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
| LEADER | 06866caa a22008777a 4500 | ||
|---|---|---|---|
| 001 | PAPER-10360 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230518204023.0 | ||
| 008 | 190411s2011 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-80051974489 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Chimento, L.P. | |
| 245 | 1 | 0 | |a K-essence and tachyons in braneworld cosmology |
| 260 | |c 2011 | ||
| 270 | 1 | 0 | |m Chimento, L.P.; Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón I, 1428 Buenos Aires, Argentina; email: chimento@df.uba.ar |
| 506 | |2 openaire |e Política editorial | ||
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| 520 | 3 | |a We investigate a k-essence field localized on the brane evolving linearly with the cosmological time for some kinetic functions and consider the atypical k-essence model for linear and nonlinear k-fields in FriedmannRobertsonWalker (FRW) cosmology. In the former case the k-field is driven by an inverse quadratic polynomial potential and the solutions exhibit several different behaviors which include expanding, contracting and bouncing universes as well as a model with a finite time span, some of them ending in a big crunch or a big rip. In the latter case we find the potential and show that the atypical k-essence model is dynamically incomplete. Particularly, by selecting the extended tachyonic kinetic functions we analyze the high and low energy limits of our model, obtaining the nearly power-law solution. We introduce a tachyon field with negative energy density and show that the universe evolves between two singularities. © 2011 World Scientific Publishing Company. |l eng | |
| 536 | |a Detalles de la financiación: Universidad de Buenos Aires, X044 | ||
| 536 | |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas, 5169 | ||
| 536 | |a Detalles de la financiación: LPC thanks the University of Buenos Aires for partial support under project X044, and the Consejo Nacional de Investigaciones Científicas y Técnicas under project 5169. MGR is supported by the Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). | ||
| 593 | |a Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón I, 1428 Buenos Aires, Argentina | ||
| 690 | 1 | 0 | |a BRANEWORLD |
| 690 | 1 | 0 | |a COSMOLOGICAL SINGULARITIES |
| 690 | 1 | 0 | |a EXTENDED TACHYONS |
| 690 | 1 | 0 | |a K-ESSENCE |
| 700 | 1 | |a Richarte, M.G. | |
| 773 | 0 | |d 2011 |g v. 20 |h pp. 1705-1712 |k n. 9 |p Int. J. Mod. Phys. D |x 02182718 |w (AR-BaUEN)CENRE-368 |t International Journal of Modern Physics D | |
| 856 | 4 | 1 | |u https://www.scopus.com/inward/record.uri?eid=2-s2.0-80051974489&doi=10.1142%2fS0218271811019736&partnerID=40&md5=fa8f957974c23a3bf0ddc05edbaf77e3 |y Registro en Scopus |
| 856 | 4 | 0 | |u https://doi.org/10.1142/S0218271811019736 |y DOI |
| 856 | 4 | 0 | |u https://hdl.handle.net/20.500.12110/paper_02182718_v20_n9_p1705_Chimento |y Handle |
| 856 | 4 | 0 | |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02182718_v20_n9_p1705_Chimento |y Registro en la Biblioteca Digital |
| 961 | |a paper_02182718_v20_n9_p1705_Chimento |b paper |c PE | ||
| 962 | |a info:eu-repo/semantics/article |a info:ar-repo/semantics/artículo |b info:eu-repo/semantics/publishedVersion | ||
| 963 | |a VARI | ||
| 999 | |c 71313 | ||