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    Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/98708


    Title: Overdamped Brownian dynamics in Inhomogeneous Temperature Field: Effective Potential, Transition Rate, Landauer Limit, and Gyration in two-dimensions
    Authors: 潘勤華
    Pan, Cin-Hua
    Contributors: 物理學系
    Keywords: 非平衡態熱力學;躍遷速率;蘭道爾極限;布朗迴轉器;布朗運動;有效位能;Non-equilibrium thermodynamics;Transition rate;Landauer limit;Brownian gyrator;Brownian motion;Effective potential
    Date: 2025-07-02
    Issue Date: 2025-10-17 13:06:28 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 我們透過解析法和朗之萬動力學模擬研究了非均勻溫度場中的過阻尼布朗動力學。在一維系統中,單軸溫度分佈和單勢阱陷阱可以產生單峰或雙峰穩態分佈,這些分佈可以用有效位勢來表徵。當有效勢具有雙勢阱結構時,我們推導出躍遷速率的一般近似公式。結果表明,躍遷速率越過有效勢壘遵循通常的 Kramers 指數行為。我們也考慮了雙勢阱的情況,所有理論和近似公式與數值模擬結果一致。

    另一個主題是非均勻溫度場下的蘭道爾極限。這是一個具有時間相關勢的一維非平衡系統。我們的目標是找出與蘭道爾極限相關的有效溫度?
    Appears in Collections:[Graduate Institute of Physics] Electronic Thesis & Dissertation

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