Gauge Quintessence
Abstract
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 (3× 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.
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