Dmitriev, S V; Kivshar, Yuri; Shigemari, Takeshi
The breather collisions in a weakly discrete sine-Gordon (SG) equation, revealing a mechanism of fractal soliton scattering, was analyzed. The breather-breather (BB) interactions in the discrete Frenkel-Kontorova (FK) system were compared with the exact BB solution of the unperturbed SG equation. The break-up of the BB system into two separate breathers was studied as a function of the initial distance between the breathers. It was found that the breathers attract each other with a weak force...[Show more]
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