Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-02-12
Phys.Rev. D68 (2003) 043503
Physics
High Energy Physics
High Energy Physics - Phenomenology
3 pages
Scientific paper
10.1103/PhysRevD.68.043503
We discuss a new model of quintessence in which the quintessence field is identified with the extra-component of a gauge field in a compactified five-dimensional theory. We show that the extremely tiny energy scale $\sim (3\times 10^{-3} eV)^4$ needed to account for the present acceleration of the Universe can be naturally explained in terms of high energy scales such as the scale of Grand Unification.
Pilo Luigi
Rayner D. A. J.
Riotto Antonio
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