Hidden past of dark energy cosmological models
| dc.creator | Fernandez-Jambrina, L. | |
| dc.date | 2007-04-30 | |
| dc.date | 2007-09-27 | |
| dc.date.accessioned | 2026-07-07T10:59:50Z | |
| dc.date.available | 2026-07-07T10:59:50Z | |
| dc.description | In this paper we analyse the possibility of having homogeneous isotropic cosmological models with observers reaching $t=\infty$ in finite proper time. It is shown that just observationally-suggested dark energy models with $w\in(-5/3,-1)$ show this feature and that they are endowed with an exotic curvature singularity. Furthermore, it is shown that non-accelerated observers in these models may experience a duration of the universe as short as desired by increasing their linear momentum. A subdivision of phantom models in two families according to this behavior is suggested. | |
| dc.description | 6 pages, 1 figure, RevTeX4, new references and comments added | |
| dc.identifier | https://arxiv.org/abs/0704.3936 | |
| dc.identifier | http://arxiv.org/abs/0704.3936 | |
| dc.identifier | Phys.Lett.B656:9-14,2007 | |
| dc.identifier | doi:10.1016/j.physletb.2007.08.091 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/187537 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | Astrophysics | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Hidden past of dark energy cosmological models | |
| dc.type | text |