与磁通量耦合的自持酶反应系统的相干性和随机共振

IF 5.6 1区数学 Q1 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS

Chaos Solitons & Fractals Pub Date : 2025-06-18 DOI:10.1016/j.chaos.2025.116685

C. Dang-Ra, A. Chamgoué Chéagé, O.T. Lekeufack, G. Filatrella, A. Troisi, R. Yamapi

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引用次数: 0

摘要

本研究考察了在白噪声和周期驱动耦合下，磁通对范德波尔振荡器相干性和随机共振的影响。结果表明，磁通和噪声调制了相关性和平均首次通过时间从另一个到稳定状态，降低了自相关幅度和相关谱密度，引起了信噪比的变化。这些发现突出了磁通在形成自相关和信噪动力学中的作用。在第三稳定吸引子的初始条件下没有观察到随机共振。因此，磁通量实质上改变了自相关和信噪比。

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Coherence and stochastic resonance in a self-sustaining enzyme-reaction system coupled to magnetic flux

This study examines the impact of magnetic flux on coherence and stochastic resonance in van der Pol oscillators coupled to white noise and a periodic drive. Results reveal that magnetic flux and noise modulate the correlation and the mean first passage time to the stable state from another, reducing autocorrelation amplitude, correlation spectral density, and inducing a change in the signal-to-noise ratio. These findings highlight magnetic flux in shaping autocorrelation and signal-to-noise dynamics. Stochastic resonance is not observed for the initial condition on the third stable attractor. Thus, magnetic flux essentially changes autocorrelation and the signal-to-noise ratio.

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来源期刊

Chaos Solitons & Fractals 物理-数学跨学科应用

CiteScore

13.20

自引率

10.30%

发文量

1087

审稿时长

9 months

期刊介绍： Chaos, Solitons & Fractals strives to establish itself as a premier journal in the interdisciplinary realm of Nonlinear Science, Non-equilibrium, and Complex Phenomena. It welcomes submissions covering a broad spectrum of topics within this field, including dynamics, non-equilibrium processes in physics, chemistry, and geophysics, complex matter and networks, mathematical models, computational biology, applications to quantum and mesoscopic phenomena, fluctuations and random processes, self-organization, and social phenomena.