ランダムなポモ・マンヌーヴィル地図におけるノイズ誘発の移行
Tetsu Endo1, Yuzuru Sato2,3, Hiroki Takahasi4
1Department of Physics and Astronomy, Tokyo University of Science, Noda, Chiba 278-8510, Japan.
Chaos (Woodbury, N.Y.)
|September 4, 2025
まとめ
二分法的なノイズを持つポモ・マンヴィルマップにランダム性を導入すると,2つの移行が明らかになる. 騒音による変化は軌道収束と同期を制御し 混沌としたシステムへの洞察を提供します
科学分野:
- 非線形動力学
- 統計物理学
- カオス理論
背景:
- ポモ・マンヴィル (PM) マップは断続的なカオスモデルです.
- ダイナミックなシステムにおけるノイズ効果を理解することは極めて重要です.
研究 の 目的:
- PMマップにおける二極的増倍ノイズの影響を調査する.
- 騒音に誘発された移行と結果として生じる動的行動を特徴付けます.
主な方法:
- PMマップに二項式増量ノイズを組み込みました.
- 近くの軌道の分離を分析した.
- 地図の選択を反発させる確率を制御した.
主要な成果:
- 2つのノイズ誘発の移行を 排斥地図の確率に基づいて特定した.
- 確率 <1/2 の無関係な固定点への観測軌道収束
- 確率 > 1/2 の場合,弱い同期とカオス/弱いカオスへの移行が見つかりました.
- 最初の移行時に 3/2 の普遍的な力法指数を示した.
結論:
- 混沌としたシステムでは,同期を含む豊かなダイナミクスを導入します.
- 騒音による移行は,断続的なシステムの長期的行動を変化させます.
- 結果は混沌と弱混沌のダイナミックシステムにおけるノイズ効果の洞察を提供します.
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