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The European Physical Journal C

, Volume 51, Issue 4, pp 953–962 | Cite as

Generalized global defect solutions

  • D. Bazeia
  • L. Losano
  • R. Menezes
  • J.C.R.E. Oliveira
Regular Article - Theoretical Physics

Abstract

We investigate the presence of defect structures in generalized models described by a real scalar field in (1,1) space-time dimensions. We work with two distinct generalizations: one in the form of a product of functions of the field and its derivative, and the other as a sum. We search for static solutions and study the corresponding linear stability on general grounds. We illustrate the results with several examples, where we find stable defect structures of modified profile. In particular, we show how the new defect solutions may give rise to evolutions not present in the standard scenario in higher spatial dimensions.

Keywords

Domain Wall Static Solution Linear Stability Lagrange Density Null Energy Condition 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag / Società Italiana di Fisica 2007

Authors and Affiliations

  • D. Bazeia
    • 1
  • L. Losano
    • 1
  • R. Menezes
    • 1
  • J.C.R.E. Oliveira
    • 2
  1. 1.Departamento de FísicaUniversidade Federal da ParaíbaParaíbaBrazil
  2. 2.Centro de Física e Departamento de FísicaUniversidade do PortoPortoPortugal

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