ArticleNature communications2017
Dynamical Majorana edge modes in a broad class of topological mechanical systems.
Article in Nature communications, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Direct observation of braiding of Majorana-like zero modes in real space.Nature communications · 2026Article
- Phonon Engineering of Micro- and Nanophononic Crystals and Acoustic Metamaterials: A Review.Small science · 2023Article
- Sounds Stimulation on In Vitro HL1 Cells: A Pilot Study and a Theoretical Physical Model.International journal of molecular sciences · 2020Article
- Experimental realization of a reconfigurable electroacoustic topological insulator.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Observation of elastic topological states in soft materials.Nature communications · 2018Article
- Mapping the dispersion of water wave channels.Scientific reports · 2018Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Mechanical systems can display topological characteristics similar to that of topological insulators. Here we report a large class of topological mechanical systems related to the BDI symmetry class. These are self-assembled chains of rigid bodies with an inversion centre and no reflection planes. The particle-hole symmetry characteristic to the BDI symmetry class stems from the distinct behaviour of the translational and rotational degrees of freedom under inversion. This and other generic properties led us to the remarkable conclusion that, by adjusting the gyration radius of the bodies, one can always simultaneously open a gap in the phonon spectrum, lock-in all the characteristic symmetries and generate a non-trivial topological invariant. The particle-hole symmetry occurs around a finite frequency, and hence we can witness a dynamical topological Majorana edge mode. Contrasting a floppy mode occurring at zero frequency, a dynamical edge mode can absorb and store mechanical energy, potentially opening new applications of topological mechanics.
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