Linking the hydrodynamic and kinetic description of a dissipative relativistic conformal theory

Understand

We use the entropy production variational method to associate a one particle distribution function to the assumed known energy-momentum and entropy currents describing a relativistic conformal fluid.

• Assuming a simple form for the collision operator we find this one particle distribution function explicitly, and show that this method of linking the hydro and kinetic description is a non trivial generalization of Grad's ansatz.
• The resulting constitutive relations are the same as in the conformal dissipative type theories discussed in J.
• Peralta-Ramos and E.