含冷离子和玻尔兹曼电子等离子体中离子声孤波的head-on collisions分类
Classification of head-on collisions of ion-acoustic solitary waves in a plasma with cold ions and Boltzmann elecrons
摘要：
用粒子模拟方法研究了由冷离子和玻尔兹曼电子组成的无碰撞等离子体中离子-声孤立波的迎头碰撞。结果表明，孤立波碰撞可以发生在不同的情况下。孤立波在碰撞后保持或不保持其振幅和形状，取决于其初始振幅。初始振幅的范围内，孤立波保持其身份碰撞后，建立。使用的碰撞孤立波的初始振幅图考虑可能的碰撞情况进行了讨论。确定了对应于不同碰撞情形的初始振幅图中的特征区域，并提出了等离子体中离子-声孤立波迎头碰撞的分类。
英文摘要：
Head-on collisions of ion-acoustic solitary waves in a collisionless plasma consisting of cold ions and Boltzmann electrons are studied using the particle-in-cell simulation. It is shown that the collision of solitary waves can occur under different scenarios. Solitary waves preserve or do not preserve their amplitudes and shapes after a collision, depending on their initial amplitudes. The range of initial amplitudes, at which a solitary wave preserves its identity after collisions, is established. The use of a diagram of initial amplitudes of colliding solitary waves to consider possible collision scenarios is discussed. The characteristic regions in the diagram of the initial amplitudes corresponding to different collision scenarios are determined, and a classification of head-on collisions of ion-acoustic solitary waves in a plasma is proposed.
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