Abstract
Considering one-dimensional diffusion as a sequence of exchange processes between occupied and vacant sites, the long-time limit of the mean-square displacement of the diffusants is shown to be easily calculable as the net effect of the random walk of the vacancies.
- Received 24 June 1991
DOI:https://doi.org/10.1103/PhysRevA.45.4173
©1992 American Physical Society