Negative superdiffusion due to the inhomogeneous convection

A. Iomin, E. Baskin

Published 2004-05-05Version 1

Fractional transport of particles on a comb structure in the presence of an inhomogeneous convection flow is studied. The large scale asymptotics is considered. It is shown that a contaminant spreads superdiffusively in the direction opposite to the convection flow. Conditions for the realization of this new effect is discussed in detail.