A multi-dimensional electron phase-space hole （electron hole） is considered to be unstable to the transverse instability. We perform two-dimensional （2D） particle-in-cell （PIC） simulations to study the evolution...A multi-dimensional electron phase-space hole （electron hole） is considered to be unstable to the transverse instability. We perform two-dimensional （2D） particle-in-cell （PIC） simulations to study the evolutions of electron holes in weakly magnetized plasma （Ωe〈 Wpe, where Ωe and Wpe are the electron gyrofrequency and plasma frequency, respectively）, and the effects of perpendicular thermal velocities on the transverse instability are investigated. The transverse instability can cause decay of the electron holes. We find that with the increasing perpendicular thermal velocity tending to stabilize the transverse instability, the corresponding wave numbers decrease.展开更多
基金Supported by the National Natural Science Foundation of China under Grant Nos 40974081, 40971053 and 40725013, the Knowledge Innovation Project of Chinese Academy of Sciences under Grant No KJCX2-YW-N28, and the Specialized Research Fund for State Key Laboratories.
文摘A multi-dimensional electron phase-space hole （electron hole） is considered to be unstable to the transverse instability. We perform two-dimensional （2D） particle-in-cell （PIC） simulations to study the evolutions of electron holes in weakly magnetized plasma （Ωe〈 Wpe, where Ωe and Wpe are the electron gyrofrequency and plasma frequency, respectively）, and the effects of perpendicular thermal velocities on the transverse instability are investigated. The transverse instability can cause decay of the electron holes. We find that with the increasing perpendicular thermal velocity tending to stabilize the transverse instability, the corresponding wave numbers decrease.
