Cosmological Implications of the Supergravity Tracking Potential
| dc.creator | Brax, Philippe | |
| dc.creator | Martin, Jerome | |
| dc.date | 1999-12-01 | |
| dc.date.accessioned | 2026-07-07T02:34:43Z | |
| dc.date.available | 2026-07-07T02:34:43Z | |
| dc.description | It is demonstrated that any realistic model of quintessence should be based on Supergravity since, when the scalar field is on tracks today, $Q\approx m_{\rm Pl}$. This improves the agreement between theoretical predictions and the current observations. In particular, a generic property is that ratio $ω_{\rm Q}\equiv p_{\rm Q}/ρ_{\rm Q}$ is pushed towards -1. A string-inspired model is proposed where the potential is given by $V(Q)= \frac{Λ^{4+α}}{Q^α}e^{\fracκ{2}Q^2}$. The model predicts $ω_{\rm Q}\approx -0.82$, a value less that one sigma from the current likehood value. | |
| dc.description | 4 pages, 2 figures, presented at the Journees Relativistes 99, Weimar, September 12-17, 1999 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9912005 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9912005 | |
| dc.identifier | Annalen Phys. 11 (2000) 507-510 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/15353 | |
| dc.subject | Astrophysics | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Cosmological Implications of the Supergravity Tracking Potential | |
| dc.type | text |