Nonsingular global strings

被引：63

作者：

Gregory, R

机构：

[1] Centre for Particle Theory, University of Durham, Durham

来源：

PHYSICAL REVIEW D | 1996年 / 54卷 / 08期

关键词：

D O I：

10.1103/PhysRevD.54.4955

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：4955 / 4962

页数：8

共 27 条

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