Cosmic string loops: large and small, but not tiny

Details Cosmic string loops: large and small, but not tiny Cosmic string loops: large and small, but not tiny

2007-12-14

arxiv.org/abs/0712.2236v2

Phys.Rev.D77:063532,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

6 pages, 1 figure, power-law approximation is replaced with exponential

Scientific paper

10.1103/PhysRevD.77.063532

We develop an analytical model to study the production spectrum of loops in the cosmic string network. In the scaling regime, we find two different scales corresponding to large (one order below horizon) and small (few orders below horizon) loops. The very small (tiny) loops at the gravitational back reaction scale are absent, and thus, our model has no ultra-violet divergences. We calculate the spectrum of loops and derive analytical expressions for the positions and magnitudes of the small and large scale peaks. The small loops are produced by large bursts of similar loops moving with very high velocities in the same direction. We describe the shape of large loops, which would usually consist of few kinks and few cusps per oscillation cycle. We also argue that the typical size of large loops is set by the correlation length, which does not depend on the intercommutation probability p, while the interstring distance scales as p^{1/3}.

Affiliated with

Also associated with

No associations

Rating

Cosmic string loops: large and small, but not tiny 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 Cosmic string loops: large and small, but not tiny, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmic string loops: large and small, but not tiny will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-661610