ArticleScience advances2023
Anomalous topological waves in strongly amorphous scattering networks.
Article in Science advances, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Kirigami-actuated reconfigurable topological photonic crystals.Nature communications · 2026Article
- Observation of momentum-band topology in PT-symmetric Floquet lattices.Nature communications · 2025Article
- 2D amorphous solids for sub-nanometer scale devices.Nano convergence · 2024Review
- Loss-compensated non-reciprocal scattering based on synchronization.Nature communications · 2024Article
- Anomalous and Chern topological waves in hyperbolic networks.Nature communications · 2024Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Topological insulators are crystalline materials that have revolutionized our ability to control wave transport. They provide us with unidirectional channels that are immune to obstacles, defects, or local disorder and can even survive some random deformations of their crystalline structures. However, they always break down when the level of disorder or amorphism gets too large, transitioning to a topologically trivial Anderson insulating phase. We demonstrate a two-dimensional amorphous topological regime that survives arbitrarily strong levels of amorphism. We implement it for electromagnetic waves in a nonreciprocal scattering network and experimentally demonstrate the existence of unidirectional edge transport in the strong amorphous limit. This edge transport is shown to be mediated by an anomalous edge state whose topological origin is evidenced by direct topological invariant measurements. Our findings extend the reach of topological physics to a class of systems in which strong amorphism can induce, enhance, and guarantee the topological edge transport instead of impeding it.
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Registered trials
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