Speaker
Robyn Edge
(University of Exeter)
Description
We present a non-Hermitian inverse-design protocol for engineering wave propagation in non-local mass–spring lattices, enabling the creation of exotic dispersion phenomena in elastic media. By extending inverse-design methods to complex frequencies and incorporating velocity-dependent, non-conservative behaviours in the governing equations, both the real band structures and their associated attenuation can be precisely tailored. Our approach demonstrates apparent wavenumber band gaps and compact Fourier representations of target functions, suitable for both passive and active systems.
Authors
Robyn Edge
(University of Exeter)
Simon Horsley
(University of Exeter)
Timothy Starkey
(University of Exeter)
Gregory Chaplain
(University of Exeter)