Dynamic Observation of Topological Soliton States in a Programmable Nanomechanical Lattice

被引：15

作者：

Lin, Shaochun ^{[1
,2
,3
,4
]}

Zhang, Liang ^{[1
,2
,3
,4
]}

Tian, Tian ^{[1
,2
,3
,4
]}

Duan, Chang-Kui ^{[1
,2
,3
,4
]}

Du, Jiangfeng ^{[1
,2
,3
,4
]}

机构：

[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China

[2] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China

[3] Univ Sci & Technol China, CAS Key Lab Microscale Magnet Resonance, Hefei 230026, Peoples R China

[4] Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Peoples R China

来源：

NANO LETTERS | 2021年 / 21卷 / 02期

基金：

国家重点研发计划;

关键词：

topological soliton states; Su-Schrieffer-Heeger model; nonequilibrium dynamics; multiple resonators; programmable topological materials;

D O I：

10.1021/acs.nanolett.0c04121

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Topological soliton states, existing in the topological structures with edge defect or interface defect, are usually studied under steady state. Here, we experimentally observe the dynamic processes of the generation and the extinction of such soliton states in the Su-Schrieffer-Heeger model. The different topological structures are implemented on a programmable nanomechanical lattice, consisting of eight adjacent string resonators which are parametrically coupled by manipulation voltages. Moreover, the beating and localization behaviors at different topological interfaces are also observed in the same device. These results explicitly exhibit the dynamic processes of topological soliton states, which reveal real potential toward integrated multifunctional topological materials.

引用

页码：1025 / 1031

页数：7