Topological Zero-Thickness Cosmic Strings

Abstract

In this paper, based on the gauge potential decomposition and the $\varphi -$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.

10 pages, no figures

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