Figure 2
Soliton configurations as a function of the magnetic drive. Space derivative of the phase, \(\frac{\partial \phi }{\partial x}\), as a function of x at those times at which the normalized driving field assumes the values H(t) = {0,1,2,3,4,5} during the forward [solid lines, panel a] and backward [dashed lines, panels b] sweeps of the drive. In panels c and d, the evolutions of \(\frac{\partial \phi }{\partial x}\) and H(t) are shown, respectively. In the latter panels, the horizontal, red solid and dashed lines indicate the times at which the curves in panels a and b are calculated, respectively.
