Figure 7

Examples of in-phase soliton collisions for κ = 10. (a) Symmetric separation with an increase in soliton velocity for δ = 0.2,  Ω= −9.93, m = 0.2 and c = 0.2; (b) symmetric separation with a decrease in soliton velocity for δ = 0.2, Ω = −9.93, m = 0.3 and c = 0.2; (c) symmetric separation with unchanged velocity for δ = 0.35, Ω = 10.31, m = 0.05 and c = 0.2; (d) Asymmetric separation for δ = 0.1, Ω = 10.31, m = 0.4 and c = 1; (e) merger into a zero velocity soliton for δ = 0.1, Ω = −10.10, m = 0.5 and c = 0.2; and (f) generation of three solitons with two moving ones and a quiescent soliton for δ = 0.2, Ω = 10.16, m = 0.5 and c = 0. Only |u| is shown.