English

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

R2 v1 2026-07-01T04:43:06.506Z