Perturbations of black holes, initially considered in the context of possible observations of
astrophysical effects, have been studied for the past 10 years in string theory, brane-world …

Quasinormal modes are eigenmodes of dissipative systems. Perturbations of classical
gravitational backgrounds involving black holes or branes naturally lead to quasinormal …

We study characteristic (quasinormal) modes of a D-dimensional Schwarzschild black hole.
It is shown that the real parts of the complex quasinormal modes, representing the real …

We present an exact formula for the thermal scalar two-point function in four-dimensional
holographic conformal field theories. The problem of finding it reduces to the analysis of the …

We present a package for Mathematica that facilitates the numerical computation of the
quasinormal mode (QNM) spectrum of a black hole/black brane. Requiring as input only the …

We start by reviewing the existing literature on the creation of black holes during high-
energy particle collisions, both in the absence and in the presence of extra, compact …

We test the stability of various wormholes and black holes supported by a scalar field with
a<? format?> negative kinetic term. The general axial perturbations and the monopole type …

We present an exact expression for the quasinormal modes of scalar, electromagnetic, and
gravitational perturbations of a near extremal Schwarzschild–de Sitter black hole and we …

Black hole quasinormal frequencies are complex numbers that encode information on how a
black hole relaxes after it has been perturbed and depend on the features of the geometry …

We find quasinormal modes of near extremal black branes by solving a singular boundary
value problem for the Heun equation. The corresponding eigenvalues determine the …