Lateral diffusions: The influence of geometry fluctuations
Université Pierre et Marie Curie-Paris6, UMR 7600, LPTMC - 4 place Jussieu, 75255 Paris, France, EU
2 Université Pierre et Marie Curie-Paris6, UMR 8112, ERGA-LERMA - 3 rue Galilée, 94200 Ivry, France, EU
Corresponding author: email@example.com
Accepted: 12 January 2010
The influence of geometry fluctuations on lateral diffusions is investigated numerically on a simple 1D problem which presents the same kind of non-linearities as fully 2D situations. It is found that geometry fluctuations influence diffusions at all scales, including scales much larger than the characteristic scales of fluctuations. The effective large-scale description of these diffusions is also investigated and the possibility of introducing a renormalized diffusion coefficient is discussed.
PACS: 87.16.dp – Transport, including channels, pores, and lateral diffusion / 05.40.Jc – Brownian motion / 02.50.Ey – Stochastic processes
© EPLA, 2010