Topological edge states in acoustic Kagome lattices

Topological edge states in acoustic Kagome lattices

We demonstrate that an acoustic Kagome lattice formed by an array of interconnected resonant cavities exhibits a new class of topological states protected by C _3 symmetry, and it is characterised by a topological invariant in the form of a winding number in Pauli vector space. This acoustic topolog...

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Bibliographic Details
Main Authors:	Xiang Ni, Maxim A Gorlach, Andrea Alu, Alexander B Khanikaev
Format:	Article
Language:	English
Published:	IOP Publishing 2017-01-01
Series:	New Journal of Physics
Subjects:	topological acoustics Kagome lattice symmetry protected topological states topological invariant
Online Access:	https://doi.org/10.1088/1367-2630/aa6996

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