Gravitational field around a time-like current-carrying screwed cosmic string in scalar-tensor theories

Details Gravitational field around a time-like current-carrying screwed cosmic string in scalar-tensor theories Gravitational field around a time-like current-carrying screwed cosmic string in scalar-tensor theories

2003-06-29

arxiv.org/abs/hep-th/0306289v2

Phys.Rev.D68:124020,2003

Physics

High Energy Physics

High Energy Physics - Theory

21 pages, no figures, Revised Version, presented at the "XXIV- Encontro Nacional de Fisica de Particulas e Campos ", Caxambu,

Scientific paper

10.1103/PhysRevD.68.124020

In this paper we obtain the space-time generated by a time-like current-carrying superconducting screwed cosmic string(TCSCS). This gravitational field is obtained in a modified scalar-tensor theory in the sense that torsion is taken into account. We show that this solution is comptible with a torsion field generated by the scalar field $\phi $. The analysis of gravitational effects of a TCSCS shows up that the torsion effects that appear in the physical frame of Jordan-Fierz can be described in a geometric form given by contorsion term plus a symmetric part which contains the scalar gradient. As an important application of this solution, we consider the linear perturbation method developed by Zel'dovich, investigate the accretion of cold dark matter due to the formation of wakes when a TCSCS moves with speed $v$ and discuss the role played by torsion. Our results are compared with those obtained for cosmic strings in the framework of scalar-tensor theories without taking torsion into account.

Affiliated with

Also associated with

No associations

Rating

Gravitational field around a time-like current-carrying screwed cosmic string in scalar-tensor theories 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 Gravitational field around a time-like current-carrying screwed cosmic string in scalar-tensor theories, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravitational field around a time-like current-carrying screwed cosmic string in scalar-tensor theories will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-32174