Quasiperiodic extended Bloch states in a surface wave experiment
M. Torres, J.L. Aragon, Juan P. Adrados, P. Cobo, S. Tehuacanero
TL;DR
This study demonstrates the first observation of Bloch-like surface waves in a quasiperiodic structure through a fluid wave experiment, revealing quasiperiodic modulation and wave propagation characteristics similar to Bloch functions in quasicrystals.
Contribution
It provides experimental evidence of quasiperiodic extended Bloch states in surface wave systems, bridging concepts between wave physics and quasicrystal structures.
Findings
Observation of Bloch-like surface waves in quasiperiodic structures
Quasiperiodic modulation of wave propagation
Reinforcement of Bloch function concepts in quasicrystals
Abstract
Bloch-like surface waves associated with a quasiperiodic structure are observed for the first time in a classic wave propagation experiment which consists of pulse propagation with a shallow fluid covering a quasiperiodically drilled bottom. We show that a transversal pulse propagates as a plane wave with quasiperiodic modulation, displaying the characteristic undulatory propagation in this quasiperiodic systems and reinforcing the idea that analogous concepts to Bloch functions can be applied to quasicrystals under certain circumstances.
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