Nonsingular global strings

Details Nonsingular global strings Nonsingular global strings

1996-06-04

arxiv.org/abs/gr-qc/9606002v2

Phys.Rev. D54 (1996) 4955-4962

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

21 pages plain TEX, 4 figs. Published version (minor error corrected)

Scientific paper

10.1103/PhysRevD.54.4955

We examine the possibility that time dependence might remove the singular nature of global string spacetimes. We first show that this time dependence takes a specific form -- a de-Sitter like expansion along the length of the string and give an argument for the existence of such a solution, estimating the rate of expansion. We compare our solution to the singular Cohen-Kaplan spacetime.

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