Invisibility of Defects in Chiral and Mirror Symmetric Acoustic Networks

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• Vincent Pagneux (Université du Maine)
• Tuesday 23 May 2023, 10:50-11:35
• Seminar Room 1, Newton Institute.

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MWSW04 - Multiple scattering in engineering and applied sciences

Network waveguides with mirror and chiral symmetry are considered: it is shown that, in these systems, scattering is very particular in the sense that defects respecting the symmetries are invisible (perfect transmission with no phase delay) at zero pseudo-energy. An application to acoustic waveguides is presented, where the pseudo-energy is directly linked to the wave frequency.

This talk is part of the Isaac Newton Institute Seminar Series series.

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