On the anomalous diffusion in nonisothermal plasma

In nonisothermal plasmas at temperature Te≫Ti diffusion plays a decisive role at conditions of smooth inhomogeneity when the inhomogeneity size is much larger than √(Te/Ti) times the Debye radius. When the inhomogeneity is rather abrupt and this condition is violated, then during the spreading process the Maxwellian relaxation of ion charges becomes significant. Here, we consider these two phenomena together and refer to the anomalous character of diffusion, i.e., anomalous diffusion.