English

Quenched scaling limit for biased random walks on random, heavy tailed conductances: low dimensions

Probability 2025-07-28 v2

Abstract

We consider a random walk amongst positive random conductances on Zd,d2\mathbb{Z}^d, d \ge 2, with directional bias. When the conductances have a stable distribution with parameter γ(0,1)\gamma \in (0, 1), the walk is sub-ballistic. In this regime Fribergh and Kious (Ann. Prob. 2018) derived an annealed scaling limit for the appropriately rescaled walk towards the Fractional Kinetics process. We prove the quenched version of this result for all d2d \ge 2.

Keywords

Cite

@article{arxiv.2507.17583,
  title  = {Quenched scaling limit for biased random walks on random, heavy tailed conductances: low dimensions},
  author = {Umberto De Ambroggio and Carlo Scali},
  journal= {arXiv preprint arXiv:2507.17583},
  year   = {2025}
}

Comments

44 pages, 4 figures, comments are welcome, typos corrected