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Nonsingular global strings

Ruth Gregory
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Abstract

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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Ruth Gregory. 1997-10-17. Nonsingular global strings. https://doi.org/10.1103/physrevd.54.4955

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