Bags, junctions, and networks of BPS and non-BPS defects

被引：86

作者：

Bazeia, D ^{[1
]}

Brito, FA ^{[1
]}

机构：

[1] Univ Fed Paraiba, Dept Fis, BR-58051970 Joao Pessoa, Paraiba, Brazil

来源：

PHYSICAL REVIEW D | 2000年 / 61卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.61.105019

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate several models of coupled scalar fields that present discrete Z(2), Z(2) x Z(2), Z(3) and other symmetries. These models support topological domain wall solutions of the BPS and non-BPS type. The BPS solutions are stable, but the stability of the non-BPS solutions may depend on the parameters that specify the models. The BPS and non-BPS states give rise to bags, and also to three-junctions that may allow the presence of networks of topological defects. In particular, we show that the non-BPS defects of a specific model that engenders the Z(3) symmetry give rise to a stable regular hexagonal network of domain walls.

引用

页数：16

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