English

Cutoff for activated random walk

Probability 2025-01-31 v1 Statistical Mechanics

Abstract

We prove that the mixing time of driven-dissipative activated random walk on an interval of length nn with uniform or central driving exhibits cutoff at nn times the critical density for activated random walk on the integers. The proof uses a new result for arbitrary graphs showing that the chain is mixed once activity is likely at every site.

Keywords

Cite

@article{arxiv.2501.17938,
  title  = {Cutoff for activated random walk},
  author = {Christopher Hoffman and Tobias Johnson and Matthew Junge and Josh Meisel},
  journal= {arXiv preprint arXiv:2501.17938},
  year   = {2025}
}

Comments

18 pages

R2 v1 2026-06-28T21:24:32.606Z