Efficient kinetic Monte Carlo simulation

Autor: Tim P. Schulze
Rok vydání: 2008
Předmět:
Zdroj: Journal of Computational Physics. 227:2455-2462
ISSN: 0021-9991
DOI: 10.1016/j.jcp.2007.10.021
Popis: This paper concerns kinetic Monte Carlo (KMC) algorithms that have a single-event execution time independent of the system size. Two methods are presented-one that combines the use of inverted-list data structures with rejection Monte Carlo and a second that combines inverted lists with the Marsaglia-Norman-Cannon algorithm. The resulting algorithms apply to models with rates that are determined by the local environment but are otherwise arbitrary, time-dependent and spatially heterogeneous. While especially useful for crystal growth simulation, the algorithms are presented from the point of view that KMC is the numerical task of simulating a single realization of a Markov process, allowing application to a broad range of areas where heterogeneous random walks are the dominate simulation cost.
Databáze: OpenAIRE