English

Erratic behavior for 1-dimensional random walks in a Liouville quasi-periodic environment

Probability 2020-06-23 v2 Dynamical Systems

Abstract

We show that one-dimensional random walks in a quasi-periodic environment with Liouville frequency generically have an erratic statistical behavior. In the recurrent case we show that neither quenched nor annealed limit theorems hold and both drift and variance exhibit wild oscillations, being logarithmic at some times and almost linear at other times. In the transient case we show that the annealed Central Limit Theorem fails generically. These results are in stark contrast with the Diophantine case where the Central Limit Theorem with linear drift and variance was established by Sinai.

Keywords

Cite

@article{arxiv.1901.10709,
  title  = {Erratic behavior for 1-dimensional random walks in a Liouville quasi-periodic environment},
  author = {Dmitry Dolgopyat and Bassam Fayad and Maria Saprykina},
  journal= {arXiv preprint arXiv:1901.10709},
  year   = {2020}
}

Comments

39 pages, 2 figures -