Interaction of Small Phase Density Holes
Interaction of Small Phase Density Holes
复制标题
小相密度孔的相互作用
DOI：
10.1238/physica.regular.060a00438
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发表时间：
1999
期刊：
影响因子：
2.9
通讯作者：
Y. Omura
中科院分区：
文献类型：
--
作者：
V. L. Krasovsky;H. Matsumoto;Y. Omura
本文研究了自洽势阱中两个弱静电孤立波相互作用的基元事件。一个一致的扰动理论描述的相互作用动力学的发展是基于被困的电子空穴的小相比，其屏蔽的等离子体的长度。它示出的粒子运动和相混合过程的绝热性的违反需要一个不可逆的变形的孔结构，有效加热的孔和相应的损失的系统的机械能。由于这种特殊的不可逆性，孤立波的“碰撞”具有非弹性碰撞的特征，从而解释了相密度空穴合并的一般趋势。
An elementary event of interaction of two weak electrostatic solitary waves associated with a deficit of the electrons trapped in the self-consistent potential well is studied. A consistent perturbation theory descriptive of the interaction dynamics is developed which is based on the smallness of the trapped electron holes as compared with the length of their shielding by the plasma. It is shown that a violation of the adiabaticity of the particle motion and phase mixing process entail an irreversible deformation of the hole structure, effective heating of the holes and the corresponding losses in the mechanical energy of the system. As a result of the peculiar irreversibility, the "collisions" of the solitary waves take the character of inelastic impacts, explaining the general tendency to merging of the phase density holes.