Interaction between spacial optical solitons in sub-strongly non-local nonlinear media
亚强非局域空间光孤子的相互作用

We investigate the interaction between spacial optical solitons in the sub-strongly non-local nonlinear media. From the light-rays equation, we obtained the evolution rule of the beam centers and found that the ratio of initial separation d0 between solitons and the characteristic length wm of the nonlocal nonlinearity have decisive influence on the interaction. We also found the largest angle below which the solitons can be attracted at oblique incidence. Numerical simulations confirm our theoretical results.