Electron-Hole Disruption due to Ion Motion and Formation of Coupled Electron Hole and Ion-Acoustic Soliton in a Plasma
Open Access
- 9 February 1998
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 80 (6) , 1224-1227
- https://doi.org/10.1103/physrevlett.80.1224
Abstract
A computer simulation reveals that an electron phase-space hole whose velocity is of the order of or slower than the ion-acoustic speed strongly interacts with ions in a collisionless plasma. The ion motion leads to the disruption of an electron hole into two holes, and forms new coupled states of electron holes and ion-acoustic solitons. This dynamics can be explained by a theory using Sagdeev's potential. In the case of a bigger hole, it is entirely broken into many small holes.Keywords
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