N=2* hydrodynamics

TL;DR

This paper confirms the universal shear viscosity to entropy density ratio in strongly coupled N=2* gauge theory using gauge/gravity duality and explicit supergravity calculations.

Contribution

It provides an explicit computation of hydrodynamic properties in N=2* gauge theory, confirming universal results via holographic methods.

Findings

Shear viscosity to entropy density ratio matches universal value

Explicit finite-temperature correlators computed in supergravity

Supports gauge/gravity duality in non-conformal theories

Abstract

Using gauge theory /string theory correspondence certain universal aspects of the strongly coupled four dimensional gauge theory hydrodynamics were established in hep-th/0311175. The analysis were performed in the framework of ``membrane paradigm'' approach to the fluctuations on the black brane stretched horizon. We confirm the universal result for the shear viscosity to the entropy density ratio for the strongly coupled N=2* gauge theory from explicit computation of the finite temperature Minkowski-space correlation functions in the dual supergravity geometry.