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physics.app-ph2025
Hofstadter butterflies in phononic structures: commensurate spectra, wave localization and metal-insulator transitions
Bryn Davies, Lorenzo Morini
We present a new simple and easy-to-implement one-dimensional phononic system whose spectrum exactly corresponds to the Hofstadter butterfly when a parameter is modulated. The syst…
physics.app-ph2024★ 11 cited
Tunable topological edge modes in Su-Schrieffer-Heeger arrays
G. J. Chaplain, A. S. Gliozzi, B. Davies +4
A potential weakness of topological waveguides is that they act on a fixed narrow band of frequencies. However, by 3D printing samples from a photo-responsive polymer, we can obtai…