【摘要】 利用束传播法对(1+1)维光折变亮屏蔽孤子间的相互作用进行了详细地数值模拟研究.结果表明两同相孤子相互吸引,并伴有孤子融合现象,且孤子融合发生时的作用距离随着孤子初始间距的增大而增大;两反相孤子相互排斥,且排斥作用随着孤子初始间距的减小而增强;当两孤子的相位差位于区间(0,π)和(-π,0)中时,其相互作用过程将伴有能量转移,但两区间内能量转移的方向相反,并表现出反转对称性;由于孤子间的距离和相对相位对孤子间的相互作用均有很大的影响,因此多个孤子间的相互作用过程非常复杂,但可以通过分析相邻孤子间的相互作用对其进行定性的预测.更多还原

【Abstract】 Detailed numerical investigations of the interactions among planar bright photorefractive screening solitons are performed by employing the so-called beam propagation method (BPM).It′s found that two in-phase solitons attract each other,and soliton fusions do occur at certain interaction length, which increases monotonously with the initial separation of the two interacting solitons.While in the case of out-of-phase,the two solitons repel each other with a force decreasing monotonously with the initial separation.When the relative phase between the two solitons falls within the ranges of (0,π) and (-π,0),energy transfer will accompany the interactions.Moreover,interactions among multiple solitons could be qualitatively predicted by analyzing those of the neighboring ones.更多还原