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arXiv · hep-th/9912015

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

D. Bazeia·F. A. Brito
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Abstract

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.

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D. Bazeia, F. A. Brito. 2000-02-15. Bags, junctions, and networks of BPS and non-BPS defects. https://doi.org/10.1103/physrevd.61.105019

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