Equivalence between Born-Infeld tachyon and effective real scalar field theories for brane structures in warped geometry

Autor(es)

Bernardini, A. E. ^[1] ; Bertolami, O. ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] Univ Porto, Fac Ciencias, Dept Fis & Astron, P-4169007 Oporto - Portugal

^[2] Inst Super Tecn, Inst Plasmas & Fusao Nucl, P-1049001 Lisbon - Portugal

• Tipo de documento: Artigo Científico
• Fonte: Physics Letters B; v. 726, n. 1-3, p. 512-517, OCT 2013.
• Citações Web of Science: 16

Resumo

An equivalence between Born-Infeld and effective real scalar field theories for brane structures is built in some specific warped space-time scenarios. Once the equations of motion for tachyon fields related to the Born-Infeld action are written as first-order equations, a simple analytical connection with a particular class of real scalar field superpotentials can be found. This equivalence leads to the conclusion that, for a certain class of superpotentials, both systems can support identical thick brane solutions as well as brane structures described through localized energy densities, T-00(y), in the 5th dimension, y. Our results indicate that thick brane solutions realized by the Born-Infeld cosmology can be connected to real scalar field brane scenarios which can be used to effectively map the tachyon condensation mechanism. (C) 2013 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 12/03561-0 - Formulação de Hamilton (Jacobi) do setor escuro do universo e estudos contextualizados em cosmologia quântica e não-comutatividade
• Beneficiário: Alex Eduardo de Bernardini
• Linha de fomento: Bolsas no Exterior - Pesquisa