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| DOI | 10.1140/EPJC/S10052-024-12653-5 | ||||
| Año | 2024 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
We studied the cosmological dynamics of a dilatonic ghost condensate field as a source of dark energy, which is non-minimally coupled to gravity through torsion. We performed a detailed phase-space analysis by finding all the critical points and their stability conditions. Also, we compared our results with the latest H(z) and Supernovae Ia observational data. In particular, we found the conditions for the existence of scaling regimes during the dark matter era. Furthermore, we obtained the conditions for a successful exit from the scaling regime, such that, at late times, the universe tends towards an attractor point describing the dark energy-dominated era. These intriguing features can allow us to alleviate the energy scale problem of dark energy since, during a scaling regime, the field energy density is not necessarily negligible at early times.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Gonzalez-Espinoza, Manuel | Hombre |
Universidad de Playa Ancha - Chile
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| 2 | Otalora, Giovanni | Hombre |
Universidad de Tarapacá - Chile
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| 3 | Leyva, Yoelsy | - |
Universidad de Tarapacá - Chile
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| 4 | SAAVEDRA-ALVEAR, JOEL FRANCISCO | Hombre |
Pontificia Universidad Católica de Valparaíso - Chile
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| Fuente |
|---|
| FONDECYT |
| Universidad de Tarapacá |
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| UK Research and Innovation |
| FONDECYT de postdoctorado |
| Direccion de Investigacion, Postgrado y Transferencia Tecnologica de la Universidad de Tarapaca |
| Direccion de Investigacion, Postgrado y TransferenciaTecnologica de la Universidad de Tarapaca |
| Agradecimiento |
|---|
| M. Gonzalez-Espinoza acknowledges the financial support of FONDECYT de Postdoctorado, No 3230801. G. Otalora acknowledges Direccion de Investigacion, Postgrado y TransferenciaTecnologica de la Universidad de Tarapaca for financial support through Proyecto UTA Mayor 4731-23. J. Saavedra acknowledges the financial support of Fondecyt Grant 1220065. |
| M. Gonzalez-Espinoza acknowledges the financial support of FONDECYT de Postdoctorado, N 3230801. G. Otalora acknowledges Direcci\u00F3n de Investigaci\u00F3n, Postgrado y Transferencia Tecnol\u00F3gica de la Universidad de Tarapac\u00E1 for financial support through Proyecto UTA Mayor 4731-23. J. Saavedra acknowledges the financial support of Fondecyt Grant 1220065. |
| M. Gonzalez-Espinoza acknowledges the financial support of FONDECYT de Postdoctorado, N 3230801. G. Otalora acknowledges Dirección de Investigación, Postgrado y Transferencia Tecnológica de la Universidad de Tarapacá for financial support through Proyecto UTA Mayor 4731-23. J. Saavedra acknowledges the financial support of Fondecyt Grant 1220065. |