  By means of hybrid multi-particle collsion--particle-in-cell (MPC-PIC)
simulations we study the dynamical scaling of energy and density correlations
at equilibrium in moderately coupled 2D and quasi 1D plasmas. We find that the
predictions of Nonlinear Fluctuating Hydrodynamics for the structure factors of
density and energy fluctuations in 1D systems with three global conservation
laws hold true also for two dimensional systems that are more extended along
one of the two spatial dimensions. Moreover, from the analysis of the
equilibrium energy correlators and density structure factors of both 1D and 2D
neutral plasmas, we find that neglecting the contribution of the fluctuations
of the vanishing self-consistent electrostatic fields overestimates the
interval of frequencies over which the anomalous transport is observed. Such
violations of the expected scaling in the currents correlation are found in
different regimes, hindering the observation of the asymptotic scaling
predicted by the theory.
