Mapping Topology-Localization Phase Diagram with Quasiperiodic Disorder Using a Programmable Superconducting Simulator
Abstract
We explore topology-localization phase diagram by simulating one-dimensional Su-Schrieffer-Heeger (SSH) model with quasiperiodic disorder using a programmable superconducting simulator. We experimentally map out and identify various trivial and topological phases with extended, critical, and localized bulk states. We find that with increasing disorder strength, some extended states can be first replaced by localized states and then by critical states before the system finally becomes fully localized. The critical states exhibit typical features such as multifractality and self-similarity, which lead to surprisingly rich phases with different types of mobility edges and scaling behaviors on the phase boundaries. Our results shed new light on the investigation of the topological and localization phenomena in condensed-matter physics.
Cite
@article{arxiv.2301.12138,
title = {Mapping Topology-Localization Phase Diagram with Quasiperiodic Disorder Using a Programmable Superconducting Simulator},
author = {Xuegang Li and Huikai Xu and Junhua Wang and Ling-Zhi Tang and Dan-Wei Zhang and Chuhong Yang and Tang Su and Chenlu Wang and Zhenyu Mi and Weijie Sun and Xuehui Liang and Mo Chen and Chengyao Li and Yingshan Zhang and Kehuan Linghu and Jiaxiu Han and Weiyang Liu and Yulong Feng and Pei Liu and Guangming Xue and Jingning Zhang and Yirong Jin and Shi-Liang Zhu and Haifeng Yu and S. P. Zhao and Qi-Kun Xue},
journal= {arXiv preprint arXiv:2301.12138},
year = {2024}
}
Comments
5 pages, 4 figures