Abstract
We show that a general, exact cosmological solution, where the dynamics of a scalar field is assigned by an exponential potential, satisfies all the issues of the dark energy approach, both from a theoretical point of view and in comparison with available observational data. Moreover, tracking conditions are discussed, with a new treatment of the well known condition We prove that the currently used expression for is wrong.
- Received 13 November 2003
DOI:https://doi.org/10.1103/PhysRevD.69.103510
©2004 American Physical Society