Greybody Factors of Charged Dilaton Black Holes in 2 + 1 Dimensions
Sharmanthie Fernando
TL;DR
This paper calculates the decay rates and greybody factors for scalar perturbations of charged and uncharged dilaton black holes in 2+1 dimensions, revealing similar behaviors in their scattering properties.
Contribution
It provides the first exact computation of greybody factors and decay rates for scalar fields in charged dilaton black holes in 2+1 dimensions.
Findings
Similar greybody factors for charged and uncharged black holes
Exact decay rates for massless scalar perturbations
Insights into black hole scattering in lower dimensions
Abstract
We have studied scalar perturbations of charged dilaton black holes in 2+1 dimensions. The black hole considered here is a solution to the low-energy string theory in 2+1 dimensions. The exact decay rates and the grey body factors for the massless minimally coupled scalar is computed for both the charged and the uncharged dilaton black holes. The charged and the uncharged black hole show similar behavior for grey body factors, reflection coefficients and decay rates.
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