On the instability of the one-texture universe

Details On the instability of the one-texture universe On the instability of the one-texture universe

1997-01-31

arxiv.org/abs/astro-ph/9702006v2

Phys.Rev. D56 (1997) 2051-2056

Astronomy and Astrophysics

Astrophysics

6 pages RevTeX file with one figure incorporated (uses RevTeX and epsf). Minor revisions to match published version. Also avai

Scientific paper

10.1103/PhysRevD.56.2051

The one-texture universe, introduced by Davis in 1987, is a homogeneous mapping of a scalar field with an $S^3$ vacuum into a closed universe. It has long been known to mathematicians that such solutions, although static, are unstable. We show by explicit construction that there is only one unstable mode, corresponding to collapse of the texture towards a single point, in the case where gravitational backreaction is neglected. We discuss the instability timescale in both static and expanding space-times; in the latter case it is of order of the present age of the universe, suggesting that, though unstable, the one-texture universe could survive to the present. The cosmic microwave background constrains the initial magnitude of this unstable perturbation to be less than of order 10^{-3}.

Affiliated with

Also associated with

No associations

Rating

On the instability of the one-texture universe 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 instability of the one-texture universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the instability of the one-texture universe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-510953