Volume 118, Number 1, April 2017
|Number of page(s)||6|
|Section||The Physics of Elementary Particles and Fields|
|Published online||05 June 2017|
Generalized Born-Infeld–like models for kinks and branes
1 Departamento de Física, Universidade Federal da Paraíba - 58051-970 João Pessoa, PB, Brazil
2 Departamento de Ciências Exatas, Universidade Federal da Paraíba - 58297-000 Rio Tinto, PB, Brazil
3 Departamento de Física, Universidade Federal de Campina Grande - 58109-970 Campina Grande, PB, Brazil
Received: 21 March 2017
Accepted: 10 May 2017
In this work we deal with a non-canonical scalar field in the two-dimensional spacetime. We search for a generalized model that is twin of the standard model, supporting the same defect structure with the same energy density. We also study the stability of the defect solution under small fluctuations, which is governed by a Sturm-Liouville equation, and show how to make it stable. The model is then modified and used in the five-dimensional spacetime to construct a thick brane that engenders the first-order framework and preserves the twinlike behavior, under tensorial fluctuations of the metric in its gravitational sector.
PACS: 11.27.+d – Extended classical solutions; cosmic strings, domain walls, texture / 11.25.-w – Strings and branes
© EPLA, 2017
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