超材料
拓扑(电路)
物理
绕组编号
航程(航空)
联轴节(管道)
理论物理学
量子力学
材料科学
数学
组合数学
数学分析
复合材料
冶金
作者
Han Liu,Xueqin Huang,Mou Yan,Jiuyang Lu,Weiyin Deng,Zhengyou Liu
出处
期刊:Physical review applied
[American Physical Society]
日期:2023-05-09
卷期号:19 (5)
被引量:7
标识
DOI:10.1103/physrevapplied.19.054028
摘要
Long-range couplings beyond the nearest neighbors can trigger exotic topological phases in metamaterials but have been overlooked in many topological models. The authors study the effect of the long-range couplings on the topological properties, and demonstrate that a Su-Schrieffer-Heeger model including the third nearest coupling, implemented by acoustic metamaterials, can lead to topological phases of large winding numbers. The experimental results show additional topological end states and rotonlike dispersions for sound waves, highlighting the potential of these long-range metamaterials in creating rich topological features.
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