On the stability of Dark Energy with Mass-Varying Neutrinos

Details On the stability of Dark Energy with Mass-Varying Neutrinos On the stability of Dark Energy with Mass-Varying Neutrinos

2005-06-27

arxiv.org/abs/astro-ph/0506663v1

Phys.Rev.D72:065024,2005

Astronomy and Astrophysics

Astrophysics

10 pages, 3 figures, submitted to Physical Review D

Scientific paper

10.1103/PhysRevD.72.065024

An interesting dynamical model for dark energy which does not require extremely light scalar fields such as quintessence, and at the same time explains the (near-) coincidence between the neutrino and dark energy densities is the model of dark energy coupled to mass varying neutrinos (MaVaNs). Despite the attractions of this model, we show that, generically, this model contains a catastrophic instability which occurs when neutrinos become non-relativistic. As a result of this instability, as neutrinos become non-relativistic, they condense into neutrino nuggets which redshift away similar to cold dark matter, and thus cease to act as dark energy. Any stable MaVaNs dark energy model is extremely contrived, and is virtually indistinguishable from a cosmological constant.

Affiliated with

Also associated with

No associations

Rating

On the stability of Dark Energy with Mass-Varying Neutrinos 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 On the stability of Dark Energy with Mass-Varying Neutrinos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the stability of Dark Energy with Mass-Varying Neutrinos will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-435032