| Issue |
EPL
Volume 85, Number 2, January 2009
|
|
|---|---|---|
| Article Number | 26002 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
| DOI | https://doi.org/10.1209/0295-5075/85/26002 | |
| Published online | 29 January 2009 | |
The origin of intermittent dynamics in the 
lattice gas model
School of Chemistry and Chemical Biology, University College Dublin - Belfield, Dublin 4, Ireland, EU
Corresponding author: kenneth@fiachra.ucd.ie
Received:
9
July
2008
Accepted:
19
December
2008
The dilute lattice gas model is presented here as a paradigmatic illustration of the connection between subdiffusive behaviour, intermittency and the motion of available (empty) space. Applying a framework based on Continuous Time Random Walk theory, we are able to show how subdiffusive motion arises and how, and when, it crosses over to a diffusive regime. The relevant timescales, 
and 
, using arguments coming from simple principles are related to the (average) distance between vacant positions, 
. Quantities of interest, such as the mean square displacement and the number of movements, are predicted and compared to simulation results.
PACS: 66.10.cg – Mass diffusion, including self-diffusion, mutual diffusion, tracer diffusion, etc. / 05.40.Fb – Random walks and Levy flights / 64.70.P- – Glass transitions of specific systems
© EPLA, 2009
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.