| Issue |
EPL
Volume 89, Number 3, February 2010
|
|
|---|---|---|
| Article Number | 38001 | |
| Number of page(s) | 4 | |
| Section | Interdisciplinary Physics and Related Areas of Science and Technology | |
| DOI | https://doi.org/10.1209/0295-5075/89/38001 | |
| Published online | 08 February 2010 | |
Lateral diffusions: The influence of geometry fluctuations
1
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: claire.chevalier26@gmail.com
Received:
20
November
2009
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
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