Corpus ID: 18357447

# Cosmological Implications of the Supergravity Tracking Potential

@article{Brax1999CosmologicalIO,
title={Cosmological Implications of the Supergravity Tracking Potential},
author={Philippe Brax and J{\'e}r{\^o}me Martin},
journal={arXiv: Astrophysics},
year={1999}
}
• Published 1 December 1999
• Physics
• arXiv: Astrophysics
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 $\omega_{\rm Q}\equiv p_{\rm Q}/\rho_{\rm Q}$ is pushed towards -1. A string-inspired model is proposed where the potential is given by \$V(Q)= \frac{\Lambda ^{4+\alpha}}{Q^{\alpha}}e^{\frac{\kappa… Expand
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