Tachyonization of the ΛCDM cosmological model
In this work a tachyonization of the ΛCDM model for a spatially flat Friedmann-Robertson-Walker space-time is proposed. A tachyon field and a cosmological constant are considered as the sources of the gravitational field. Starting from a stability analysis and from the exact solutions for a standard...
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| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
| Publicado: |
2010
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
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| LEADER | 06146caa a22007217a 4500 | ||
|---|---|---|---|
| 001 | PAPER-7870 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230518203739.0 | ||
| 008 | 190411s2010 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-77953028625 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Chimento, L.P. | |
| 245 | 1 | 0 | |a Tachyonization of the ΛCDM cosmological model |
| 260 | |c 2010 | ||
| 270 | 1 | 0 | |m Kremer, G. M.; Departamento de Física, Universidade Federal do Paraná, Caixa Postal 19044, Curitiba 81531-990, Brazil; email: kremer@fisica.ufpr.br |
| 506 | |2 openaire |e Política editorial | ||
| 504 | |a Chimento, L.P., (2006) Phys. Lett. B, 633, p. 9 | ||
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| 504 | |a Copeland, E.J., Garousi, M.R., Sami, M., Tsujikawa, S., (2005) Phys. Rev. D, 71, p. 043003 | ||
| 504 | |a Calcagni, G., Liddle, A.R., (2006) Phys. Rev. D, 74, p. 043528 | ||
| 504 | |a Copeland, E.J., Sami, M., Tsujikawa, S., (2006) Int. J. Mod. Phys. D, 15, p. 1753 | ||
| 504 | |a Debenedictis, A., Das, A., Kloster, S., (2004) Gen. Relativ. Gravit., 36, p. 2481 | ||
| 504 | |a Das, A., Gupta, S., Saini, T.D., Kar, S., (2005) Phys. Rev. D, 72, p. 043528 | ||
| 504 | |a Padmanabhan, T., (2002) Phys. Rev. D, 66, p. 021301 | ||
| 504 | |a Sami, M., (2003) Mod. Phys. Lett. A, 18, p. 691 | ||
| 504 | |a Paul, B.C., Paul, D., (2005) Int. J. Mod. Phys. D, 14, p. 1831 | ||
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| 504 | |a Berger, M.S., Shojaei, H., (2006) Phys. Rev. D, 74, p. 043530 | ||
| 504 | |a Herrera, R., Pavon, D., Zimdahl, W., (2004) Gen. Relativ. Gravit., 36, p. 2161 | ||
| 504 | |a Carroll, S.M., Hoffman, M., Trodden, M., (2003) Phys. Rev. D, 68, p. 023509 | ||
| 504 | |a Chimento, L.P., (2004) Phys. Rev. D, 69, p. 123517 | ||
| 504 | |a Chimento, L.P., Forte, M., (2006) Phys. Rev. D, 73, p. 063502 | ||
| 504 | |a Kremer, G.M., Alves, D.S., (2004) Gen. Relativ. Gravit., 36, p. 2039 | ||
| 504 | |a Kutasov, D., Marino, M., Moore, G., (2000) J. High Energy Phys., 10, p. 045 | ||
| 504 | |a Gibbons, G.W., (2003) Class. Quantum Grav., 20, p. 4401 | ||
| 504 | |a Padmanabhan, T., (2002) Phys. Rev. D, 66, p. 021301 | ||
| 504 | |a Feinstein, A., (2002) Phys. Rev. D, 66, p. 063511 | ||
| 504 | |a Aguirregabiria, J.M., Chimento, L.P., Lazkoz, R., (2004) Phys. Rev. D, 70, p. 023509 | ||
| 504 | |a Armendariz-Picon, C., Mukhanov, V., Steinhardt, P.J., (2001) Phys. Rev. D, 63, p. 103510 | ||
| 520 | 3 | |a In this work a tachyonization of the ΛCDM model for a spatially flat Friedmann-Robertson-Walker space-time is proposed. A tachyon field and a cosmological constant are considered as the sources of the gravitational field. Starting from a stability analysis and from the exact solutions for a standard tachyon field driven by a given potential, the search for a large set of cosmological models which contain the ΛCDM model is investigated. By the use of internal transformations two new kinds of tachyon fields are derived from the standard tachyon field, namely, a complementary and a phantom tachyon fields. Numerical solutions for the three kinds of tachyon fields are determined and it is shown that the standard and complementary tachyon fields reproduces the ΛCDM model as a limiting case. The standard tachyon field can also describe a transition from an accelerated to a decelerated regime, behaving as an inflationary field at early times and as a matter field at late times. The complementary tachyon field always behaves as a matter field. The phantom tachyon field is characterized by a rapid expansion where its energy density increases with time. © 2010 Springer Science+Business Media, LLC. |l eng | |
| 536 | |a Detalles de la financiación: Universidad de Buenos Aires, X224 | ||
| 536 | |a Detalles de la financiación: Conselho Nacional de Desenvolvimento Científico e Tecnológico | ||
| 536 | |a Detalles de la financiación: Conselho Nacional de Desenvolvimento Científico e Tecnológico | ||
| 536 | |a Detalles de la financiación: Secretaria de Ciencia y Tecnica, Universidad de Buenos Aires, CAPES 117/07 | ||
| 536 | |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas, 5169 | ||
| 536 | |a Detalles de la financiación: Acknowledgments The authors acknowledge the partial support under project 24/07 of the agreement SECYT (Argentina) and CAPES 117/07 (Brazil). LPC thanks the University of Buenos Aires for partial support under project X224, and the Consejo Nacional de Investigaciones Científicas y Técnicas under project 5169. GMK acknowledges the support by Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq). | ||
| 593 | |a Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón I, 1428 Buenos Aires, Argentina | ||
| 593 | |a Departamento de Física, Universidade Federal do Paraná, Caixa Postal 19044, Curitiba 81531-990, Brazil | ||
| 593 | |a Faculdades Integradas Espírita, Rua Tobias de Macedo Jr. 1333, Curitiba 82010-340, Brazil | ||
| 690 | 1 | 0 | |a COSMOLOGICAL MODELS |
| 690 | 1 | 0 | |a TACHYON FIELD |
| 700 | 1 | |a Forte, M. | |
| 700 | 1 | |a Kremer, G.M. | |
| 700 | 1 | |a Ribas, M.O. | |
| 773 | 0 | |d 2010 |g v. 42 |h pp. 1523-1535 |k n. 6 |p Gen. Relativ. Gravit. |x 00017701 |w (AR-BaUEN)CENRE-369 |t General Relativity and Gravitation | |
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| 856 | 4 | 0 | |u https://doi.org/10.1007/s10714-009-0924-5 |y DOI |
| 856 | 4 | 0 | |u https://hdl.handle.net/20.500.12110/paper_00017701_v42_n6_p1523_Chimento |y Handle |
| 856 | 4 | 0 | |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00017701_v42_n6_p1523_Chimento |y Registro en la Biblioteca Digital |
| 961 | |a paper_00017701_v42_n6_p1523_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 68823 | ||