Avalanche stability transition in interacting quasiperiodic systems
Disordered Systems and Neural Networks
2023-01-19 v2 Statistical Mechanics
Quantum Physics
Abstract
Coupling a 1D quasiperiodic interacting system to a Markovian bath, we study the avalanche instability of the many body localized phase numerically, finding that many body localization (MBL) is more stable in pseudorandom quasiperiodic systems than the corresponding randomly disordered systems for a disorder strength , potentially up to arbitrarily large system sizes. We support our conclusion by additionally developing real space RG arguments, and provide a detailed comparison between quasiperiodic and random MBL from the avalanche instability perspective, concluding that the two belong to different universality classes.
Cite
@article{arxiv.2207.05051,
title = {Avalanche stability transition in interacting quasiperiodic systems},
author = {Yi-Ting Tu and DinhDuy Vu and Sankar Das Sarma},
journal= {arXiv preprint arXiv:2207.05051},
year = {2023}
}
Comments
10 pages, 13 figures