(A) Observation of multisoliton fission, superimposed over a sinusoidal modulation at the drive frequency with amplitude H = 1.5 nm (dashed red line). (B) Corrected experimental data, with sinusoidal background subtracted. (C) Custom Euler model. (D) Third sound KdV solution obtained using Eq. (1). (E) Gravity wave KdV solution obtained using Eq. (1), with reversed nonlinear coefficient α.
Christopher G. Baker 