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Type: Artigo de periódico
Title: Field propagation in de Sitter black holes
Author: Molina, C
Giugno, D
Abdalla, E
Saa, A
Abstract: We present an exhaustive analysis of scalar, electromagnetic, and gravitational perturbations in the background of Schwarzchild-de Sitter and Reissner-Nordstrom-de Sitter spacetimes. The field propagation is considered by means of a semianalytical (WKB) approach and two numerical schemes: the characteristic and general initial value integrations. The results are compared near the extreme cosmological constant regime, where analytical results are presented. A unifying picture is established for the dynamics of different spin fields.
Country: EUA
Editor: American Physical Soc
Citation: Physical Review D. American Physical Soc, v. 69, n. 10, 2004.
Rights: aberto
Identifier DOI: 10.1103/PhysRevD.69.104013
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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