Different topological phase transitions in the Su–Schrieffer–Heeger model under different disorder structures

作     者：Yan Gu Zhanpeng Lu 古燕;陆展鹏

作者机构：Shanxi Vocational University of Engineering Science and TechnologyJinzhong 030619China Institute of Theoretical Physics and State Key Laboratory of Quantum Optics and Quantum Optics DevicesShanxi UniversityTaiyuan 030006China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2024年第33卷第9期

页      面：217-221页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：the National Natural Science Foun-dation of China(Grant No.12205176) the High-level Tal-ent Research Start-up Project(Grant No.RCK202231) 

主　　题：topological insulator quasi-periodic modulation 

摘      要：We investigate the topological phase transition in the Su–Schrieffer–Heeger model with the long-range hopping and quasi-periodic *** numerically calculating the real-space winding number,we obtain topological phase diagrams for different disordered *** diagrams suggest that topological phase transitions are different by selecting the specific disordered *** quasi-periodic modulation is applied to intracell hopping,the resulting disorder induces topological Anderson insulator(TAI)phase with high winding number(W=2),but the topological states are destroyed as the disorder ***,when intercell hoppings are modulated quasi-periodically,both TAI phase and the process of destruction and restoration of topological zero modes can be induced by *** topological states remain robust even under strong disorder *** work demonstrates that disorder effects do not always disrupt topological states;rather,with a judicious selection of disordered structures,topological properties can be preserved.