Unified description of the dynamics of quintessential scalar fields

Details Unified description of the dynamics of quintessential scalar fields Unified description of the dynamics of quintessential scalar fields

Publishing date

2011-08-23

URL

arxiv.org/abs/1108.4712v2

Science

Astronomy and Astrophysics

Field

Astrophysics

SubField

Cosmology and Extragalactic Astrophysics

Additional info

Minor changes to the text and two new figures, main conclusions unchanged. 12 pages, 11 figures, uses RevTex

Type

Scientific paper

Abstract

Using the dynamical system approach, we describe the general dynamics of cosmological scalar fields in terms of critical points and heteroclinic lines. It is found that critical points describe the initial and final states of the scalar field dynamics, but that heteroclinic lines which give a more complete description of the evolution in between the critical points. In particular, the heteroclinic line that departs from the (saddle) critical point of perfect fluid-domination is the representative path in phase space of quintessence fields that may be viable dark energy candidates. We also discuss the attractor properties of the heteroclinic lines, and their importance for the description of thawing and freezing fields.

Affiliated with

Also associated with

No associations

Rating

Unified description of the dynamics of quintessential scalar fields does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Unified description of the dynamics of quintessential scalar fields, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Unified description of the dynamics of quintessential scalar fields will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-376944