Article ID Journal Published Year Pages File Type
974079 Physica A: Statistical Mechanics and its Applications 2010 10 Pages PDF
Abstract

Stochastic differential equations, especially the one called Langevin equation, play an important role in many fields of modern science. In this paper, we use the bicolour rooted tree method, which is based on the stochastic Taylor expansion, to get the systematic pattern of the high order algorithm for Langevin equation. We propose a popular test problem, which is related to the energy relaxation in the double well, to test the validity of our algorithm and compare our algorithm with other usually used algorithms in simulations. And we also consider the time-dependent Langevin equation with the Ornstein–Uhlenbeck noise as our second example to demonstrate the versatility of our method.

Related Topics
Physical Sciences and Engineering Mathematics Mathematical Physics
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