Effective viscosities in a hydrodynamically expanding boost-invariant QCD plasma

Holographic dual of a boost-invariant plasma with chemical potential

We construct a gravity dual of a boost-invariant flow of an N = 4 SU(N) supersymmetric Yang-Mills gauge theory plasma with chemical potential. We present both a firstorder corrected late-time solution in Eddington-Finkelstein coordinates and a zeroth-order solution in parametric form in Fefferman-Graham coordinates. The resulting background takes the form of a time-dependent AdS Reissner-Nordst...

Shear viscosity of boost invariant plasma at finite coupling

We discuss string theory α ′ corrections in the dual description of the expanding boost invariant N = 4 supersymmetric Yang-Mills plasma at strong coupling. We compute finite 't Hooft coupling corrections to the shear viscosity and find that it disagrees with the equilibrium correlation function computations. We comment on the possible

Invariant Charge in Qcd

This paper gives an overview of recently developed model for the QCD analytic invariant charge. Its underlying idea is to bring the analyticity condition, which follows from the general principles of local Quantum Field Theory, in perturbative approach to renor-malization group (RG) method. The concrete realization of the latter consists in explicit imposition of analyticity requirement on the ...

Masses and Boost-invariant Wave Functions of Heavy Quarkonia from the Light-front Hamiltonian of Qcd

Second order hydrodynamics of a CFT plasma from boost invariant expansion

We compute finite coupling correction to a nonlinear second order hydrodynamic coefficient in the boost invariant expansion of the N = 4 supersymmetric Yang-Mills plasma. The result is universal for a large class of strongly coupled four dimensional conformal gauge theories.