在机械网络中对拓边缘和角状态的无模型表征
Marcelo Guzman1,2, Xiaofei Guo3, Corentin Coulais2
1Laboratoire de Physique, École Normale Supérieure de Lyon, Université Claude Bernard, CNRS, Lyon F-69342, France.
概括
研究人员开发了一种新的实验方法,用于检测机械结构中的拓零模式. 这种方法绕过了理论模型,使得拓力学的实际应用成为可能.
科学领域:
- 拓学力学 拓学力学
- 凝聚物质物理学 凝聚物质物理学
- 材料科学是一种材料科学.
背景情况:
- 拓材料表现出受保护的边缘和角状态,这对于强大的波导和传感至关重要.
- 目前用于识别机械结构中的拓模式的方法严重依赖理论模型,限制了实际应用.
研究的目的:
- 引入和验证一种实验方法,用于检测机械结构中的拓保护的零模式.
- 克服拓力学中依赖模型的检测方法的局限性.
主要方法:
- 使用静电类比,将拓式零模式等同于电荷.
- 奇拉极化,在奇拉阶段的拓标记,是衡量在基本的机械分子.
- 极化场中的奇点被确定以确定拓式零模式.
主要成果:
- 开发的方法可以在没有理论建模的情况下成功检测到拓式零模式.
- 该技术适用于各种机械结构,包括常规和高阶拓绝缘体.
- 拓绝缘体的边缘和角状态得到了有效的识别.
结论:
- 这种实验方法使拓力学研究民主化,超越了实验室演示.
- 它有助于在各种机械系统中直接实验地研究合拓相.
- 这些发现扩大了拓力学对实际工程应用的范围.
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