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Scattering of topological edge waves in Kekule structures

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MWSW01 - Canonical scattering problems

Kekule structures are graphene-like lattices, with a modulation of the intersite coupling that preserves the hexagonal symmetry of the system. These structures possess very peculiar properties. In particular, they display topological phases manifested by the presence of edge waves propagating on the edge of a sample. We will discuss the extraordinary scattering properties of these edge waves across defects or disorder. We will also discuss how to realize Kekule structures in acoustic networks of waveguides. 

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

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