Field propagation in de Sitter black holes
Sep, 2003
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Abstract: (arXiv)
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 semi-analytical (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.- 04.70.Bw
- 04.30.Nk
- black hole: Reissner-Nordstroem
- black hole: de Sitter
- field theory: scalar
- electromagnetic field
- gravitation
- WKB approximation
- perturbation: decay
- numerical calculations
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