2 papers
physics.app-ph2022
Non-Hermitian acoustic waveguides with periodic electroacoustic feedback
Danilo Braghini, Vinicius D. de Lima, Danilo Beli +2
In this work, we investigate non-Hermitian acoustic waveguides designed with periodically applied feedback efforts using electrodynamic actuators. One-dimensional spectral (infinit…
cond-mat.mtrl-sci2021
Non-Hermitian elastic waveguides with piezoelectric feedback actuation: non-reciprocal bands and skin modes
Danilo Braghini, Luis G. G. Villani, Matheus I. N. Rosa +1
In this work, we investigate non-Hermitian elastic waveguides with periodically applied proportional feedback efforts, implemented through piezoelectric sensors and actuators. Usin…