Figure 2

Profile and contour plots of two solitons. (a) Evolution of the two-soliton solution \(u^{(2)}_{ss}\) represented by Eq. (43) with parameters \(\alpha =1\), \(\epsilon=1\), \(\delta=1\), \(\lambda_{1}=i\), \(\lambda_{2}=2 i\). (b) The corresponding density plot of \(u^{(2)}_{ss}\) in (a).