Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-02-22
Phys.Rev.D77:124005,2008
Physics
High Energy Physics
High Energy Physics - Theory
20 pages and 7 figures, some references are added and some removed. There are some changes to the text
Scientific paper
10.1103/PhysRevD.77.124005
We have studied the charged scalar perturbation around a dilaton black hole in 2 +1 dimensions. The wave equations of a massless charged scalar field is shown to be exactly solvable in terms of hypergeometric functions. The quasinormal frequencies are computed exactly. The relation between the quasinormal frequencies and the charge of the black hole, charge of the scalar and the temperature of the black hole are analyzed. The asymptotic form of the real part of the quasinormal frequencies are evaluated exactly.
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