Anisotropic Dispersion of a Charged Particle Swarm in a Turbulent Gas in an Electrostatic Field

Abstract

This paper generalises an earlier result of Saffman (1960) to account for cross effects between turbulent and molecular diffusion for charged particle swarms in a gas in the presence of an electrostatic field. It is shown that turbulence enhances the anisotropic character of diffusion. The desirability of using a full kinetic theory analysis as against a limited hydrodynamic description of the swarm is discussed, and one possible tractable approach pointed out.

Global flow of the Higgs potential in a Yukawa model

“…In the following, we briefly sketch our methods; for more details, see [56]. It is worth mentioning that pseudospectral methods have already successfully been applied to various problems in physics in general [92]; for first applications in the context of the functional RG, see [93,94]. The present code development is based on a highly accurate pseudo-spectral solver for computing global fixedpoint solutions within the functional RG [55].…”