Nonextensive perfect hydrodynamics - A model of dissipative relativistic hydrodynamics?

Abstract

We demonstrate that nonextensive perfect relativistic hydrodynamics (q-hydrodynamics) can serve as a model of the usual relativistic dissipative hydrodynamics (d-hydrodynamics) therefore facilitating considerably its applications. As an illustration, we show how using q-hydrodynamics one gets the q-dependent expressions for the dissipative entropy current and the corresponding ratios of the bulk and shear viscosities to entropy density, ζ/s and η/s respectively. © Versita Warsaw and Springer-Verlag Berlin Heidelberg 2009.