热超材料中对流调制的拓扑边缘模式与扩展-局域临界性
Convection-modulated topological edge mode and extended-localized criticality in thermal metamaterials
AI总结：
本文提出通过对流调制热超材料实现非厄米拓扑边缘模式与体态模式临界性，利用周期性调制诱导带隙内边缘模式，并通过准周期对流调制引入扩展-局域临界性，为可重构热器件设计提供了新方案。
摘要：
对流提供了一种动态且灵活的方法，以实现超越纯传导的各种新颖物理现象。在此，我们证明具有对流调制的热超材料能够实现非厄米拓扑边缘模式和体态模式临界性。我们阐明，周期性调制可在带隙内诱导出局域边缘模式。拓扑态的温度场局域在边缘环上，以固定速率指数衰减。此外，我们通过热学中的准周期对流调制引入了扩展-局域临界性。对流在应用中具有极佳的可调性优势。我们的工作提出了一种通过在扩散系统中调制对流来实现拓扑模式和体态模式临界性的方案，为可重构热器件的设计铺平了道路。
英文摘要：
Convection offers a dynamic and flexible approach to achieving a variety of novel physical phenomena beyond pure conduction. Here, we demonstrate that thermal metamaterials with convection modulation enable the realization of non-Hermitian topological edge modes and bulk mode criticality. We illustrate that a periodic modulation can induce localized edge modes within the band gap. The temperature field of the topological state is localized at the edge rings, decaying exponentially at a fixed rate. Additionally, we introduce an extended-localized criticality through the quasiperiodic convection modulation in thermotics. The convections have an advantage of fantastic tunability in the application. Our work proposes a scheme for implementing topological modes and bulk mode criticality through modulating convection in diffusion systems, paving the way for the design of reconfigurable thermal devices.
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