The Paths of Quintessence

Details The Paths of Quintessence The Paths of Quintessence

2006-01-03

arxiv.org/abs/astro-ph/0601052v2

Phys.Rev. D73 (2006) 063010

Astronomy and Astrophysics

Astrophysics

12 pages, 7 figures; matches PRD version

Scientific paper

10.1103/PhysRevD.73.063010

The structure of the dark energy equation of state phase plane holds important information on the nature of the physics. We explain the bounds of the freezing and thawing models of scalar field dark energy in terms of the tension between the steepness of the potential vs. the Hubble drag. Additionally, we extend the phase plane structure to modified gravity theories, examine trajectories of models with certain properties, and categorize regions in terms of scalar field hierarchical parameters, showing that dark energy is generically not a slow roll phenomenon.

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