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| DOI | 10.1140/EPJC/S10052-020-8128-Y | ||||
| Año | 2020 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
In this work, we study some thermodynamical aspects associated with torsion in a flat FLRW spacetime cosmic evolution. By implementing two Ansatze for the torsion term, we find that the model admits a phantom regime or a quintessence behavior. This scheme differs from the Lambda CDM model at the thermodynamical level. The resulting cosmic expansion is not adiabatic, the fulfillment of the second law of thermodynamics requires a positive torsion term, and the temperature of the cosmic fluid is always positive. The entropy of the torsion phantom scenario is negative, but introducing chemical potential solves this issue. For a Dirac-Milne type Universe, the torsion leads to a growing behavior for the temperature of the fluid but has no incidence on the rate of expansion.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Cruz, Miguel | Hombre |
Univ Veracruzana - México
Universidad Veracruzana - México |
| 2 | IZAURIETA-ARANDA, FERNANDO ESTEBAN | Hombre |
Universidad de Concepción - Chile
|
| 3 | LEPE-SANTA CRUZ, SAMUEL | Hombre |
Pontificia Universidad Católica de Chile - Chile
Pontificia Universidad Católica de Valparaíso - Chile |
| Fuente |
|---|
| Consejo Nacional de Ciencia y Tecnología |
| CONACyT-México |
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| Fondo Nacional de Desarrollo CientÃfico y Tecnológico |
| S.N.I. (CONACyT-Mexico) |
| Chilean government through FONDECYT Grant of the Government of Chile |
| Agradecimiento |
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| M.C. work has been supported by S.N.I. (CONACyT-Mexico). F.I. acknowledges financial support from the Chilean government through FONDECYT Grant 1180681 of the Government of Chile. |
| M.C. work has been supported by S.N.I. (CONACyT-México). F.I. acknowledges financial support from the Chilean government through FONDECYT Grant 1180681 of the Government of Chile. |