Bags, junctions, and networks of BPS and non-BPS defects
High Energy Physics - Theory
2009-10-31 v2
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.
Keywords
Cite
@article{arxiv.hep-th/9912015,
title = {Bags, junctions, and networks of BPS and non-BPS defects},
author = {D. Bazeia and F. A. Brito},
journal= {arXiv preprint arXiv:hep-th/9912015},
year = {2009}
}
Comments
Revtex, 16 pages, 6 ps figures; Shorter version to be published in Phys. Rev. D