| Issue |
Europhys. Lett.
Volume 67, Number 6, September 2004
|
|
|---|---|---|
| Page(s) | 900 - 906 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i2004-10143-4 | |
| Published online | 01 September 2004 | |
Molecular-dynamics studies of annihilation reactions
1
Laboratoire de Recherches sur la Réactivité des Solides UMR 5613 CNRS-Université de Bourgogne 9 Avenue Alain Savary - BP 47870, F-21078 Dijon Cedex, France
2
Centre for Nonlinear Phenomena and Complex Systems Université Libre de Bruxelles, Campus Plaine - C.P. 231, B-1050 Brussels, Belgium
Received:
14
April
2004
Accepted:
8
July
2004
The validity of the reaction-diffusion formulation of annihilation
kinetics, with randomly distributed initial conditions, is
investigated by molecular-dynamics simulations of dense
hard-disk fluids. For the reaction 
quantitative agreement is found. Yet, this proves not to be the
case for the reaction 
, where major
discrepancies are observed. For this latter reaction, more
sophisticated theories predict a logarithmic decay law of the form
. The microscopic simulations essentially confirm this
prediction.
PACS: 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 05.90.+m – Other topics in statistical physics, thermodynamics, and nonlinear dynamical systems / 82.20.Wt – Computational modeling; simulation
© EDP Sciences, 2004
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.