English

TASEPy: a Python-based package to iteratively solve the inhomogeneous exclusion process

Statistical Mechanics 2023-10-31 v3

Abstract

The totally asymmetric simple exclusion process (TASEP) is a paradigmatic lattice model for one-dimensional particle transport subject to excluded-volume interactions. Solving the inhomogeneous TASEP in which particles' hopping rates vary across the lattice is a long-standing problem. In recent years, a power series approximation (PSA) has been developed to tackle this problem, however no computer algorithm currently exists that implements this approximation. This paper addresses this issue by providing a Python-based package TASEPy that finds the steady state solution of the inhomogeneous TASEP for any set of hopping rates using the PSA truncated at a user-defined order.

Keywords

Cite

@article{arxiv.2308.00847,
  title  = {TASEPy: a Python-based package to iteratively solve the inhomogeneous exclusion process},
  author = {Luca Ciandrini and Richmond L. Crisostomo and Juraj Szavits-Nossan},
  journal= {arXiv preprint arXiv:2308.00847},
  year   = {2023}
}

Comments

24 pages, 6 figures, submission to SciPost, minor changes and new features added

R2 v1 2026-06-28T11:45:59.893Z