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Quasinormal modes of Gauss-Bonnet-AdS black holes: towards holographic description of finite coupling

2017
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Journal of High Energy Physics
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Here we shall show that there is no other instability for the Einstein-Gauss-Bonnet-anti-de Sitter (AdS) black holes, than the eikonal one and consider the features of the quasinormal spectrum in the stability sector in detail. The obtained quasinormal spectrum consists from the two essentially different types of modes: perturbative and non-perturbative in the Gauss-Bonnet coupling $\alpha$. The sound and hydrodynamic modes of the perturbative branch can be expressed through their

doi:10.1007/jhep09(2017)139
fatcat:22lliyqjwjgrba3tnwabfnr76q