Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2009-05-30
Phys.Rev.D80:024024,2009
Physics
High Energy Physics
High Energy Physics - Theory
5 pages, RevTex4. v2: References added and minor typos corrected. Published version
Scientific paper
10.1103/PhysRevD.80.024024
Using series solutions and time-domain evolutions, we probe the eikonal limit of the gravitational and scalar-field quasinormal modes of large black holes and black branes in anti-de Sitter backgrounds. These results are particularly relevant for the AdS/CFT correspondence, since the eikonal regime is characterized by the existence of long-lived modes which (presumably) dominate the decay timescale of the perturbations. We confirm all the main qualitative features of these slowly-damped modes as predicted by Festuccia and Liu (arXiv:0811.1033) for the scalar-field (tensor-type gravitational) fluctuations. However, quantitatively we find dimensional-dependent correction factors. We also investigate the dependence of the QNM frequencies on the horizon radius of the black hole (brane) and the angular momentum (wavenumber) of vector- and scalar-type gravitational perturbations.
Cardoso Vitor
Miranda Alex S.
Molina C.
Morgan Jaqueline
Zanchin Vilson Tonin
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