Effect of a positive cosmological constant on cosmic strings
General Relativity and Quantum Cosmology
2008-12-31 v3 High Energy Physics - Theory
Abstract
We study cosmic Nielsen-Olesen strings in space-times with a positive cosmological constant. For the free cosmic string in a cylindrically symmetric space-time, we calculate the contribution of the cosmological constant to the angle deficit, and to the bending of null geodesics. For a cosmic string in a Schwarzschild-de Sitter space-time, we use Kruskal patches around the inner and outer horizons to show that a thin string can pierce them.
Cite
@article{arxiv.0807.0543,
title = {Effect of a positive cosmological constant on cosmic strings},
author = {Sourav Bhattacharya and Amitabha Lahiri},
journal= {arXiv preprint arXiv:0807.0543},
year = {2008}
}
Comments
v3:15pp. References and some explanations added; version accepted for publication in Phys. Rev. D