### 抜粋

A nonlinear theory is presented which shows mode-locking of a naturally excited instability by an externally launched wave whose frequency is around that of the instability. A procedure to remove secular solutions leads to a couple of nonlinear equations which describe slow-time evolutions of amplitudes. A stably stationary solution of these equations is investigated to show qualitative agreement with published experiments; the external field strength at which the instability vanishes increases as the frequency discrepancy between the instability and the external wave |Ω-ω_{0}| increases, and a relation Aa^{2}+Bb^{2}=1 is obtained between the amplitude of the instability a and that of the externally excited wave b where the ratio B/A depends on the frequency discrepancy in the form (Ω-ω0)^{−2}.

元の言語 | English |
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ページ（範囲） | 2340-2348 |

ページ数 | 9 |

ジャーナル | Journal of the Physical Society of Japan |

巻 | 49 |

発行部数 | 6 |

DOI | |

出版物ステータス | Published - 1980 |

### フィンガープリント

### ASJC Scopus subject areas

- Physics and Astronomy(all)