2 papers
physics.app-ph2025
Generalized causality constraint based on duality symmetry reveals untapped potential of sound absorption
Sichao Qu, Min Yang, Sibo Huang +6
Causality constraints are known to bind sound absorption to a limit that can only be achieved by optimizing the system bandwidth for a specific material thickness. This limit is de…
physics.class-ph2025
Designing Band Gaps with Randomly Distributed Sub-Wavelength Helmholtz Resonators
Paulo S. Piva, Art L. Gower, I. David Abrahams
It is well-known that band gaps, in the frequency domain, can be achieved by using periodic metamaterials. However it has been challenging to design materials with broad band gaps…