  Using numerical simulations, we investigate the equilibrium dynamics of a
single component fluid with Yukawa interaction potential. We show that, for a
wide range of densities and temperatures, the dynamics of the system are in
striking agreement with a simple model of generalized hydrodynamics. Since the
Yukawa potential can describe the ion-ion interactions in a plasma, the model
has significant applicability for both analyzing and interpreting the results
of x-ray scattering data from high power lasers and fourth generation light
sources.
