Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1999-05-25
Phys.Rev. D60 (1999) 067705
Physics
High Energy Physics
High Energy Physics - Theory
Revtex, 07 pages, no figures
Scientific paper
10.1103/PhysRevD.60.067705
We investigate a model for a real scalar field in bidimensional space-time, described in terms of a positive semi-definite potential that presents no vacuum state. The system presents topological solutions of the BPS type, with energy density that follows a Lorentzian law. These BPS solutions differ from the standard $\tanh$-type kink, but they also support bosonic and fermionic zero modes.
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