Figure 3: Strong topological protection of acoustic chiral modes against defects. | Nature Communications

Figure 3: Strong topological protection of acoustic chiral modes against defects.

From: Floquet topological insulators for sound

Figure 3

(a) Immunity of the nonreciprocal edge mode to various defects and turns. The one-way edge states flows seamlessly, regardless of the edge geometry, shape of the turn or the presence of localized defects. (b) Example of uni-rotational acoustic mode localized to a crystal defect in an inner edge. The colour map represents the acoustic pressure.

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