Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/103981
Type: Artigo de periódico
Title: Stability Of Closed Timelike Curves In The Gödel Universe
Author: Rosa V.M.
Letelier P.S.
Abstract: We study, in some detail, the linear stability of closed timelike curves in the Gödel universe. We show that these curves are stable. We present a simple extension (deformation) of the Gödel metric that contains a class of closed timelike curves similar to the ones associated to the original metric. This extension correspond to the addition of matter whose energy-momentum tensor is analyzed. We find the conditions to have matter that satisfies the usual energy conditions. We study the stability of closed timelike curves in the presence of usual matter as well as in the presence of exotic matter (matter that does satisfy the above mentioned conditions). We find that the closed timelike curves in the Gödel universe with or without the inclusion of regular or exotic matter are stable under linear perturbations. We also find a sort of structural stability. © 2007 Springer Science+Business Media, LLC.
Editor: 
Rights: fechado
Identifier DOI: 10.1007/s10714-007-0464-9
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-34547923781&partnerID=40&md5=f109d606063841f6d527595719b993c1
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File Description SizeFormat 
2-s2.0-34547923781.pdf800.05 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.