On A 5-Dimensional Spinning Cosmic String

Details On A 5-Dimensional Spinning Cosmic String On A 5-Dimensional Spinning Cosmic String

2006-08-31

arxiv.org/abs/gr-qc/0609003v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

15 pages 32 figures. Improvement of numerical solutions

Scientific paper

We present a numerical solution of a stationary 5-dimensional spinning cosmic string in the Einstein-Yang-Mills (EYM) model, where the extra bulk coordinate $\psi$ is periodic. It turns out that when $g_{\psi\psi}$ approaches zero, i.e., a closed time-like curve (CTC) would appear, the solution becomes singular. When a negative cosmological constant is incorporated in the model, the solution becomes regular everywhere with angle deficit$<2\pi$. However, the cosmic string-like object has not all the desired asymptotic properties of the counterpart Abelian Nielsen-Olesen string. When we use a two point boundary value routine with the correct cosmic string features far from the core, then again a negative $\Lambda$ results in an acceptable string-like solution. We also investigated the possibility of a Gott space time structure of the static 5D cosmic string. The matching condition yields no obstruction for an effective angle deficit. Moreover, by considering the angular momentum in bulk space, no helical structure of time is necessary. Two opposite moving 5D strings could, in contrast with the 4D case, fulfil the Gott condition.

Affiliated with

Also associated with

No associations

Rating

On A 5-Dimensional Spinning Cosmic String 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 A 5-Dimensional Spinning Cosmic String, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On A 5-Dimensional Spinning Cosmic String will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-492478