High Energy Physics and Quintessence

Details High Energy Physics and Quintessence High Energy Physics and Quintessence

2000-05-23

arxiv.org/abs/astro-ph/0005449v1

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures. Contribution to the Proceedings of Moriond 2000 "Energy Densities in the Universe", Les Arcs, France, Janu

Scientific paper

It is shown that any realistic model of quintessence should be based on Supergravity (SUGRA) since the value of the quintessence field on the attractor is approximately the Planck mass. Under very general assumptions, the typical shape of a SUGRA tracking potential is derived. Cosmological implications are investigated. In particular, it is demonstrated that, generically, the equation of state parameter is driven to a value close to -1 in agreement with recent observations.

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