| 负能模式在驱动漂移波非线性不稳定性中的作用(Ⅰ)——向正能模式的转变和双稳态 |
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| 引用本文： | 贺凯芬,胡岗.负能模式在驱动漂移波非线性不稳定性中的作用(Ⅰ)——向正能模式的转变和双稳态[J].物理学报,1993,42(7):1035-1041. |
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| 作者姓名： | 贺凯芬 胡岗 |
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| 作者单位： | 北京师范大学低能核物理研究所,北京100875;北京师范大学物理系,北京100875 |
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| 基金项目： | 国家基础性研究重大项目《非线性科学》基金资助的课题 |
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| 摘 要： | 在正弦波驱动的非线性漂移波中,每一个模式都有与驱动波共振的参数区,驱动波能量的馈入引起共振负能模式向正能模式转变,这个转变与相应参数区中系统发展双稳态有关。
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| 关 键 词： | 漂移波 稳定性 双稳态 负能模式 |
| 收稿时间： | 1992-08-31 |
THE EFFECT OF NEGATIVE-ENERGY MODE ON NONLINEAR INSTABILITY IN DRIVEN DRIFT WAVES (I)——TRANSITION TO POSITIVE-ENERGY MODE AND THE BISTABILITY |
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| HE KAI-FEN and HU GANG.THE EFFECT OF NEGATIVE-ENERGY MODE ON NONLINEAR INSTABILITY IN DRIVEN DRIFT WAVES (I)——TRANSITION TO POSITIVE-ENERGY MODE AND THE BISTABILITY[J].Acta Physica Sinica,1993,42(7):1035-1041. |
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| Authors: | HE KAI-FEN and HU GANG |
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| Abstract: | In the nonlinear drift-waves driven by a sinucoidal wave, every mode has a resonance regime correspondingly in the parameter space of the driving frequency and strength. Feeding of the applied wave energy causes the transition of a resonant negative-energy mode to positive-energy one. This transition is relevant to the development of bistability of the system in the corresponding regime. |
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