How to simulate L\'evy flights in a steep potential: An explicit splitting numerical scheme
Computational Physics
2026-01-21 v3 Statistical Mechanics
Probability
Abstract
We propose an effective explicit numerical scheme for simulating solutions of stochastic differential equations with confining superlinear drift terms, driven by multiplicative heavy-tailed L\'evy noise. The scheme is designed to prevent explosion and accurately capture all finite moments of the solutions. In the purely Gaussian case, it correctly reproduces moments of sub-Gaussian tails of the solutions. This method is particularly well-suited for approximating statistical moments and other probabilistic characteristics of L\'evy flights in steep potential landscapes.
Keywords
Cite
@article{arxiv.2508.07339,
title = {How to simulate L\'evy flights in a steep potential: An explicit splitting numerical scheme},
author = {Ilya Pavlyukevich and Olga Aryasova and Alexei Chechkin and Oleksii Kulyk},
journal= {arXiv preprint arXiv:2508.07339},
year = {2026}
}
Comments
27 pages, 10 figures