Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-05-23
Phys.Rev.D72:087701,2005
Physics
High Energy Physics
High Energy Physics - Theory
11 pages, 4 figures
Scientific paper
10.1103/PhysRevD.72.087701
Some years ago, Cho and Vilenkin, introduced a model which presents topological solutions, despite not having degenerate vacua as is usually expected. Here we present a new model with topological defects, connecting degenerate vacua but which in a certain limit recovers precisely the one proposed originally by Cho and Vilenkin. In other words, we found a kind of parent model for the so called vacuumless model. Then the idea is extended to a model recently introduced by Bazeia et al. Finally, we trace some comments the case of the Liouville model.
Faria C. Amaro de A. Jr.
Souza Dutra Alvaro de
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