Quasinormal Modes of the Charged Black Hole in Gauss-bonnet Gravity

نویسنده

  • Roman Konoplya
چکیده

The d-dimensional string generated gravity models lead to Einstein-Maxwell equations with quadratic order correction term called the Gauss-Bonnet term. We calculate the quasinormal modes for the d-dimensional charged black hole in the framework of this model. The quasinormal spectrum essentially depends upon the Gauss-Bonnet coupling parameter α which is related to the string scale, and is totally different from that for black holes derived from Einstein action. In particular , at large α the quasinormal modes are proportional to α, while as α goes to zero the qusinormal modes approach some constant values. In contrary to Einstein theory black hole behavior, the damping rate of the charged GB black hole as a function of charge does not contain a chracteristic maximum, but instead the monotonic falling down is observed. In addition, there have been obtained an asymptotic formula for large multipole numbers.

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تاریخ انتشار 2004