Continuum theory of vacancy-mediated diffusion
Statistical Mechanics
2009-10-31 v1
Abstract
We present and solve a continuum theory of vacancy-mediated diffusion (as evidenced, for example, in the vacancy driven motion of tracers in crystals). Results are obtained for all spatial dimensions, and reveal the strongly non-gaussian nature of the tracer fluctuations. In integer dimensions, our results are in complete agreement with those from previous exact lattice calculations. We also extend our model to describe the vacancy-driven fluctuations of a slaved flux line.
Cite
@article{arxiv.cond-mat/9806291,
title = {Continuum theory of vacancy-mediated diffusion},
author = {T. J. Newman},
journal= {arXiv preprint arXiv:cond-mat/9806291},
year = {2009}
}
Comments
25 Latex pages, subm. to Physical Review B