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arXiv physics/0410143physics.plasm-ph
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电子束等离子体中的相空间空穴

Phase-Space Holes in an Electron-Beam-Plasma

Tsuyoshi Takeda, Yamagiwa Keiichiro

摘要:

在电子束等离子体系统中,相空间空穴从出现到坍缩在电子时间尺度上动态演化。孔与由束模式主导的波包同步,并且它们的速度半径取决于波包波峰幅度。这表明空穴是由自陷现象引起的。从观察到的图像可以看出,当包线性增长时,俘获光束很难被解除俘获,而当包线性增长时,俘获光束很容易被解除俘获。

英文摘要:

It is shown in an electron-beam-plasma system that phase-space holes evolve dynamically in electron time scales from appearance to collapse. The holes are synchronized with a wave packet dominated by a beam mode, and their velocity radii depend on the packet crest amplitudes. This suggests that the holes are induced by a self-trapping phenomenon. It seems from the observed images that the trapped-beam is hard to be detrapped while the packet grows linearly, but easy to be done after that.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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