Abstract
We propose a new quintessence scenario in brane cosmology, assuming that a quintessence field Q is confined in our three-dimensional brane world. With a potential we find that the density parameter of the scalar field decreases as in the epoch of quadratic energy density dominance, if This attractor solution is followed by the usual tracking quintessence scenario after a conventional Friedmann universe is recovered. With an equipartition of initial energy density, we find a natural and successful quintessence model for
- Received 14 December 2000
DOI:https://doi.org/10.1103/PhysRevD.64.123525
©2001 American Physical Society