title: Dromion interactions of (2+1)-dimensional nonlinear evolution equations
abstract: Starting from two line solitons, the solution of integrable (2+1)-dimensional mKdV system and KdV system in bilinear form yields a dromion solution or a "Solitoff" solution. Such a dromion solution is localized in all directions and the Solitoff solution decays exponentially in all directions except a preferred one for the physical field or a suitable potential. The interactions between two dromions and between the dromion and Solitoff are studied by the method of figure analysis for a (2+1)-dimensional modified KdV equation and a (2+1)-dimensional KdV type equation. Our analysis shows that the interactions between two dromions may be elastic or inelastic for different forms of solutions.
authors.affiliation: Institute of Modern Physics, Ningbo University, Ningbo 315211, China and Zhejiang Institute of Modern Physics, Zhejiang University, Hangzhou 310027, China.
authors.initials: Hy
authors.lastname: Ruan
authors.initials: Yx
authors.lastname: Chen