Nonextensive perfect hydrodynamics - a model of dissipative relativistic hydrodynamics?

Details Nonextensive perfect hydrodynamics - a model of dissipative relativistic hydrodynamics? Nonextensive perfect hydrodynamics - a model of dissipative relativistic hydrodynamics?

2008-10-17

arxiv.org/abs/0810.3089v2

Centr. Eur. J. Phys. 7(3) (2009) 432-443

Physics

High Energy Physics

High Energy Physics - Phenomenology

Invited talk presented at SigmaPhi2008 conference, Kolymbari, Crete, 14-18 July 2008, revised version to be published in Cent.

Scientific paper

10.2478/s11534-008-0163-5

We demonstrate that nonextensive perfect relativistic hydrodynamics ($q$-hydrodynamics) can serve as a model of the usual relativistic dissipative hydrodynamics ($d$-hydrodynamics) facilitating therefore considerably its applications. As 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, $\zeta/s$ and $\eta/s$.

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