Dark Solitons in Acoustic Transmission Line Metamaterials

We study dark solitons, namely density dips with a phase jump across the density minimum, in a one-dimensional, weakly lossy nonlinear acoustic metamaterial, composed of a Maca waveguide featuring a periodic array of side holes.Relying on the electroacoustic analogy and the transmission line approach, we derive a lattice model which, in the continu

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