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Type: Artigo de periódico
Title: Quantum singularities in space-times with spherical and cylindrical topological defects
Author: Pitelli, PM
Letelier, PS
Abstract: Exact solutions of Einstein equations with null Riemman-Christoffel curvature tensor everywhere, except on a hypersurface, are studied using quantum particles obeying the Klein-Gordon equation. We consider the particular cases when the curvature is represented by a Dirac delta function with support either on a sphere or on a cylinder (spherical and cylindrical shells). In particular, we analyze the necessity of extra boundary conditions on the shells. (c) 2007 American Institute of Physics.
Country: EUA
Editor: Amer Inst Physics
Rights: aberto
Identifier DOI: 10.1063/1.2779952
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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