A new single-dynamical-scalar-field model of dark energy

Details A new single-dynamical-scalar-field model of dark energy A new single-dynamical-scalar-field model of dark energy

2005-08-06

arxiv.org/abs/astro-ph/0508171v1

Astronomy and Astrophysics

Astrophysics

7 pages, 4 figures

Scientific paper

A new single-dynamical-scalar-field model of dark energy is proposed, in which either higher derivative terms nor structures of extra dimension are needed. With the help of a fixed background vector field, the parameter for the effective equation of state of dark energy may cross $w=-1$ in the evolution of the universe. After suitable choice of the potential, the crossing $w=-1$ and transition from decelerating to accelerating occur at $z\approx 0.2$ and $z\approx 1.7$, respectively.

Affiliated with

Also associated with

No associations

Rating

A new single-dynamical-scalar-field model of dark energy 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 A new single-dynamical-scalar-field model of dark energy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A new single-dynamical-scalar-field model of dark energy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-522156