Comment on ``Diffusion of Ionic Particles in Charged Disordered Media''

TL;DR

This paper critiques previous simulation results on ionic particle diffusion in charged disordered media, highlighting inconsistencies with established bounds and calculations.

Contribution

It provides a critical analysis pointing out discrepancies between earlier simulation results and theoretical bounds, renormalization group calculations, and prior studies.

Findings

Previous simulations are inconsistent with exact bounds.

Theoretical calculations align better with earlier numerical results.

Highlights the need for revised simulation approaches.

Abstract

This comment points out that simulation results of Mehrabi and Sahimi [Phys. Rev. Lett. 82, 735 (1999)] are iconsistent with exact bounds, renormalization group calculations, and previous numerical simulations.