New agegraphic dark energy as a rolling tachyon

Details New agegraphic dark energy as a rolling tachyon New agegraphic dark energy as a rolling tachyon

2009-02-04

arxiv.org/abs/0902.0716v1

Chin.Phys.B19:019802-6,2010

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

11 pages, 4 figures

Scientific paper

10.1088/1674-1056/19/1/019802

Combining the general relativity and the uncertainty relation in quantum mechanics, the energy density of quantum fluctuations of space-time can be viewed as dark energy. The so-called agegraphic dark energy model is just based on this viewpoint, in which the age of the universe is introduced as the length measure. Recently, the new agegraphic dark energy model was proposed, where the dynamical dark energy is measured by the conformal age of the universe. On the other hand, scalar-field dark energy models like tachyon are often regarded as an effective description of some underlying theory of dark energy. In this paper, we show that the new agegraphic dark energy can be described completely by a tachyon scalar-field. We thus reconstruct the potential and the dynamics of the tachyon scalar-field, according to the evolution of the new agegraphic dark energy.

Affiliated with

Also associated with

No associations

Rating

New agegraphic dark energy as a rolling tachyon 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 New agegraphic dark energy as a rolling tachyon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New agegraphic dark energy as a rolling tachyon will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-553548