在由多个轨道诱导的连续体中,Z分类的拓阶段和边界状态
Shi-Feng Li1, Wen-Jie Yang1, Cui-Yu-Yang Zhou1
1Key Laboratory of Modern Acoustics, MOE, Institute of Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, P. R. China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|January 21, 2025
概括
研究人员使用轨道自由度设计了具有多个相的新型声学拓绝缘体. 这项工作使得能够创建强大的拓设备,用于传感和计算应用.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 拓学材料 拓学材料
- 声学元材料是一种声学元材料.
背景情况:
- 具有奇拉对称性的高阶拓绝缘器 (HOTI) 提供独特的拓相,由多极奇拉数 (MCN) 保护.
- 设计具有多个拓相的人工Z分类HOTI仍然是一个重大挑战.
研究的目的:
- 将多轨道自由度引入声学晶体,用于设计Z级HOTI.
- 在轨道Z分类HOTI中实现各种拓相位过渡.
- 探索连续体中拓局限状态的新机制.
主要方法:
- 在声学晶体中引入多轨道自由度.
- 工程拓学的相位过渡.
- 利用退化的p轨道的不一致的现场能量.
主要成果:
- 在单个声学模型中证明了角模式与不同的机制的共存.
- 实现了Z分类的高阶拓绝缘体,具有大型MCN,独立于远程合.
- 在连续体中构造的拓局限状态.
结论:
- 轨道自由度为设计音响系统中复杂的拓阶段提供了一个多功能平台.
- 开发的方法为创建强大的拓设备提供了一条途径,用于传感和计算.
- 使用轨道现象获得了对拓波物理学的新见解.
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