Oscillating Quintessence
| dc.creator | Gu, Je-an | |
| dc.date | 2007-11-23 | |
| dc.date.accessioned | 2026-07-07T08:44:35Z | |
| dc.date.available | 2026-07-07T08:44:35Z | |
| dc.description | An oscillating scalar field as a quintessence model for dark energy is proposed. The case of a power-law potential is particularly intriguing and is the focus of the present article. In this model the equation of state w_{OQ} of dark energy is a constant determined simply by the power n in the potential through w_{OQ} = (n-2)/(n+2). Accordingly, when 0 < n < 1, the oscillating quintessence can provide repulsive gravity and drive the cosmic acceleration. The condition for oscillation and the constraints from observations are investigated. For this new scenario a specific natural model with much less fine tuning is presented. | |
| dc.description | 4 pages, LaTeX | |
| dc.identifier | https://arxiv.org/abs/0711.3606 | |
| dc.identifier | http://arxiv.org/abs/0711.3606 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/142705 | |
| dc.subject | Astrophysics | |
| dc.title | Oscillating Quintessence | |
| dc.type | text |