Topological zero-thickness cosmic strings

被引：2

作者：

Duan, Yi-Shi ^{[1
]}

Cao, Zhen-Bin ^{[1
]}

机构：

[1] Lanzhou Univ, Inst Theoret Phys, Lanzhou 730000, Peoples R China

来源：

MODERN PHYSICS LETTERS A | 2007年 / 22卷 / 32期

关键词：

cosmic strings; topological tensor current;

D O I：

10.1142/S0217732307022529

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper, based on the gauge potential decomposition and the phi-mapping theories, we study the topological structures and properties of the cosmic strings that arise in the Abelian-Higgs gauge theory in the zero-thickness limit. After a detailed discussion, we conclude that the topological tensor current introduced in our model is a better and more basic starting point than the generally used Nambu-Goto effective action for studying cosmic strings.

引用

页码：2471 / 2478

页数：8

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