A modulated shear to entropy ratio

  title={A modulated shear to entropy ratio},
  author={Omrie Ovdat and Amos Yarom},
  journal={Journal of High Energy Physics},
  • O. Ovdat, A. Yarom
  • Published 23 July 2014
  • Physics, Geology
  • Journal of High Energy Physics
A bstractWe study correlation functions in an equilibrated spatially modulated phase of Einstein-Maxwell two-derivative gravity. We find that the ratio of the appropriate low frequency limit of the stress-stress two point function to the entropy density is modulated. The conductivity, the stress-current and current-stress correlation functions are also modulated. At temperatures close to the phase transition we obtain analytic expressions for some of the correlation functions. 
Temperature dependent transport coefficients in a dynamical holographic QCD model
A bstractWe investigate temperature dependent behavior of various transport coefficients in a dynamical holographical QCD model. We show the nontrivial temperature dependent behavior of the transport
Probing anomalous driving
A bstractWe study the effects of driving a magnetically charged black brane solution of Einstein-Maxwell-Chern-Simons theory by a time dependent electric field. From a holographic perspective, we
The shear viscosity in anisotropic phases
A bstractWe construct anisotropic black brane solutions and analyse the behaviour of some of their metric perturbations. These solutions correspond to field theory duals in which rotational symmetry
Note on the Noether charge and holographic transports
We clarify the relation between the Noether charge associated to an arbitrary vector field and the equations of motions by revisiting Wald formalism. For a time-like Killing vector, aspects of the
A breakdown of a universal hydrodynamic relation in Gauss-Bonnet gravity
We compute the second order transport coefficients of a hydrodynamic theory with Einstein-Gauss-Bonnet gravity dual. We show the breakdown of the universal hydrodynamic relation $ -2 \lambda_0 + 4
Generalized Smarr formula and the viscosity bound for Einstein-Maxwell-dilaton black holes
We study the shear viscosity to entropy ratio $\ensuremath{\eta}/S$ in the boundary field theories dual to black-hole backgrounds in theories of gravity coupled to a scalar field, and generalizations
Black hole entropy and viscosity bound in Horndeski gravity
A bstractHorndeski gravities are theories of gravity coupled to a scalar field, in which the action contains an additional non-minimal quadratic coupling of the scalar, through its first derivative,


From AdS/CFT correspondence to hydrodynamics
We compute the correlation functions of R-charge currents and components of the stress-energy tensor in the strongly coupled large-N finite-temperature = 4 supersymmetric Yang-Mills theory, following
Holographic Hydrodynamics with a Chemical Potential
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 framework, we
Transport in anisotropic superfluids: a holographic description
A bstractWe study transport phenomena in p-wave superfluids in the context of gauge/gravity duality. Due to the spacetime anisotropy of this system, the tensorial structure of the transport
Analytic Approaches to An-Isotropic Holographic Superfluids
We have constructed an analytic solution of Einstein-SU(2)-Yang-Mills system as a holographic dual of an an-isotropic superfluid near the critical point up to leading corrections in the series
Analytic approaches to anisotropic holographic superfluids
A bstractWe construct an analytic solution of the Einstein-SU(2)-Yang-Mills system as the holographic dual of an anisotropic superfluid near its critical point, up to leading corrections in both the
Holographic endpoint of spatially modulated phase transition
In a previous paper [S. Nakamura, H. Ooguri, and C. S. Park, Phys. Rev. D 81, 044018 (2010)], we showed that the Reissner-Nordstrom black hole in the five-dimensional anti–de Sitter space coupled to
Gravity Dual of Spatially Modulated Phase
We show that the five-dimensional Maxwell theory with the Chern-Simons term is tachyonic in the presence of a constant electric field. When coupled to gravity, a sufficiently large Chern-Simons
Spatially modulated phase in the holographic description of quark-gluon plasma.
A string theory construction of a gravity dual of a spatially modulated phase in quark-gluon plasma when the baryon density is above 0.8Nf  fm(-3) at temperature 150 MeV is presented.
Shear viscosity from R-charged AdS black holes
We compute the shear viscosity in the supersymmetric Yang-Mills theory dual to the STU background. This is an example of thermal gauge theory with a nonzero chemical potential. The quotient of the