Topological solitons in a vacuumless system

被引:30
作者
Bazeia, D [1 ]
机构
[1] MIT, Ctr Theoret Phys, Nucl Sci Lab, Cambridge, MA 02139 USA
[2] MIT, Dept Phys, Cambridge, MA 02139 USA
[3] Univ Fed Paraiba, Dept Fis, BR-58051970 Joao Pessoa, Paraiba, Brazil
来源
PHYSICAL REVIEW D | 1999年 / 60卷 / 06期
关键词
D O I
10.1103/PhysRevD.60.067705
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We investigate a model for a real scalar field in bidimensional space-time, described in terms of a positive semidefinite potential that presents no vacuum state. The system presents topological solutions of the BPS type. with an 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. [S0556-2821(99)05016-X].
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页数:4
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