Quasinormal modes of black holes and black branes

E Berti, V Cardoso, AO Starinets - Classical and Quantum Gravity, 2009‏ - iopscience.iop.org
Quasinormal modes are eigenmodes of dissipative systems. Perturbations of classical
gravitational backgrounds involving black holes or branes naturally lead to quasinormal …

Holographic QCD: Past, present, and future

Y Kim, IJ Shin, T Tsukioka - Progress in Particle and Nuclear Physics, 2013‏ - Elsevier
At the dawn of a new theoretical tool based on the AdS/CFT correspondence for non-
perturbative aspects of quantum chromodynamics, we give an interim review on the new …

Complexified quasinormal modes and the pole-skip** in a holographic system at finite chemical potential

N Abbasi, S Tahery - Journal of High Energy Physics, 2020‏ - Springer
A bstract We develop a method to study coupled dynamics of gauge-invariant variables,
constructed out of metric and gauge field fluctuations on the background of a AdS 5 …

Holographic hydrodynamics with a chemical potential

RC Myers, MF Paulos, A Sinha - Journal of High Energy Physics, 2009‏ - iopscience.iop.org
We consider five-dimensional gravity coupled to a negative cosmological constant and a
single U (1) gauge field, including a general set of four-derivative interactions. In this …

Coherent/incoherent metal transition in a holographic model

KY Kim, KK Kim, Y Seo, SJ Sin - Journal of High Energy Physics, 2014‏ - Springer
A bstract We study AC electric (σ), thermoelectric (α), and thermal\(\left (\overline
{\kappa}\right)\) conductivities in a holographic model, which is based on 3+ 1 dimensional …

Magnetophonons & type-B Goldstones from hydrodynamics to holography

M Baggioli, S Grieninger, L Li - Journal of High Energy Physics, 2020‏ - Springer
A bstract We perform a detailed analysis of a large class of effective holographic models with
broken translations at finite charge density and magnetic field. We exhaustively discuss the …

Viscosity bound, causality violation and instability with stringy correction and charge

XH Ge, Y Matsuo, FW Shu, SJ Sin… - Journal of High Energy …, 2008‏ - iopscience.iop.org
Recently, it has been shown that if we consider the higher derivative correction, the viscosity
bound conjectured to be η/s= 1/4π is violated and so is the causality. In this paper, we …

Shear viscosity, instability and the upper bound of the Gauss-Bonnet coupling constant

XH Ge, SJ Sin - Journal of High Energy Physics, 2009‏ - iopscience.iop.org
We compute the dimensionality dependence of η/s for charged black branes with Gauss-
Bonnet correction. We find that both causality and stability constrain the value of Gauss …

Shear viscosity and instability from third order Lovelock gravity

XH Ge, SJ Sin, SF Wu, GH Yang - … Review D—Particles, Fields, Gravitation, and …, 2009‏ - APS
We calculate the ratio of shear viscosity to entropy density for charged black branes in third
order Lovelock theory. For chargeless black branes, the result turns out to be consistent with …

Anisotropic plasma at finite U (1) chemical potential

L Cheng, XH Ge, SJ Sin - Journal of High Energy Physics, 2014‏ - Springer
A bstract We present a type IIB supergravity solution dual to a spatially anisotropic\(\mathcal
{N}\)= 4 super Yang-Mills plasma at finite U (1) chemical potential and finite temperature …