Unified Model for Dark Energy
| dc.creator | Gonzalez-Diaz, Pedro F. | |
| dc.date | 2002-12-18 | |
| dc.date | 2003-02-04 | |
| dc.date.accessioned | 2026-07-07T10:31:35Z | |
| dc.date.available | 2026-07-07T10:31:35Z | |
| dc.description | A new model for the universe filled with a generalized Chaplygin fluid is considered which unitarily describes as a single vacuum entity both a quintessence scalar field and a cosmological constant, so unifying the notion of dark energy. While the evolution of the universe filled with such a fluid does not obviously contradict the present cosmic acceleration, the introduced single dark-energy component, for equations of state with characteristic parameter $ω\geq -1$, behaves like an usual quintessence fluid with constant equation of state at early high densities, and like a pure cosmological constant at late cosmological times. | |
| dc.description | 5 pages, some misprints corrected, a comment on the initial equation of state inserted, one reference added | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0212414 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0212414 | |
| dc.identifier | Phys.Lett.B562:1-8,2003 | |
| dc.identifier | doi:10.1016/S0370-2693(03)00540-9 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/178461 | |
| dc.subject | Astrophysics | |
| dc.title | Unified Model for Dark Energy | |
| dc.type | text |