IFIMAR   20926
INSTITUTO DE INVESTIGACIONES FISICAS DE MAR DEL PLATA
Unidad Ejecutora - UE
artículos
Título:
Differences between fixed time step and kinetic Monte Carlo methods for biased diffusion
Autor/es:
V. RUIZ BARLETT; J. J. BIGEÓN; M. HOYUELOS; H. O. MÁRTIN
Revista:
JOURNAL OF COMPUTATIONAL PHYSICS
Editorial:
ACADEMIC PRESS INC ELSEVIER SCIENCE
Referencias:
Año: 2009 vol. 228 p. 5740 - 5740
ISSN:
0021-9991
Resumen:
We consider biased diffusion in a one dimensional lattice and compareresults obtained with fixed time step and kinetic Monte Carlomethods.  Spurious dispersion and particle position correlationappear with the fixed time step Monte Carlo approach. The mentionedcorrelation increases with time. We demonstrate that the correctresults, that correspond to a time step that tends to zero, areobtained using the kinetic Monte Carlo method.  The conclusions alsoapply to biased diffusion in two or more dimensions and to randomdeposition.
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