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Topological acoustic polaritons: robust sound manipulation at the subwavelength scale
2017
New Journal of Physics
Topological insulators, a hallmark of condensed matter physics, have recently reached the classical realm of acoustic waves. A remarkable property of time-reversal invariant topological insulators is the presence of unidirectional spin-polarized propagation along their edges, a property that could lead to a wealth of new opportunities in the ability to guide and manipulate sound. Here, we demonstrate and study the possibility to induce topologically non-trivial acoustic states at the deep
doi:10.1088/1367-2630/aa66f8
fatcat:hcspokvaefgpjjsb5bagmfcyxy