Noise-enhanced stability in synchronized systems

IF 12.5 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Science Advances Pub Date : 2025-08-01 DOI:10.1126/sciadv.adx1338

Zhan Shi, Qiangfeng Lv, Mengqi Fu, Xuefeng Wang, Zhilong Huang, Xueyong Wei, Marco Amabili, Ronghua Huan

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Abstract

Synchronization underpins coherence in natural and engineered systems, unifying dynamics and countering noise while remaining vulnerable to disturbances threatening the stability and risking desynchronization. Here, we present a counterintuitive approach: harnessing noise to dilute the energy of unwanted fluctuations from external disturbances, thereby enhancing stability while preserving synchronization through the system’s inherent noise suppression at the synchronized frequency. Through experiments with micromechanical oscillators and macroscale rotors, combined with stochastic averaging analysis, we show that this noise dilution effect improves synchronization efficiency, bolsters resistance to interference, and enhances long-term frequency stability. These findings position white noise of appropriate intensity as a dilution element for mitigating unwanted disturbances, providing previously unidentified insights into stability and resilience in complex synchronized systems.

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同步系统的噪声增强稳定性

同步支持自然和工程系统的一致性，统一动态和对抗噪声，同时仍然容易受到威胁稳定性和不同步风险的干扰。在这里，我们提出了一种违反直觉的方法：利用噪声来稀释来自外部干扰的不必要波动的能量，从而增强稳定性，同时通过系统在同步频率上的固有噪声抑制来保持同步。通过对微机械振荡器和宏观转子的实验，结合随机平均分析，我们发现这种噪声稀释效应提高了同步效率，增强了抗干扰能力，增强了频率的长期稳定性。这些发现将适当强度的白噪声定位为减轻不必要干扰的稀释因素，为复杂同步系统的稳定性和弹性提供了以前未被识别的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Science Advances 综合性期刊-综合性期刊

CiteScore

21.40

自引率

1.50%

发文量

1937

审稿时长

29 weeks

期刊介绍： Science Advances, an open-access journal by AAAS, publishes impactful research in diverse scientific areas. It aims for fair, fast, and expert peer review, providing freely accessible research to readers. Led by distinguished scientists, the journal supports AAAS's mission by extending Science magazine's capacity to identify and promote significant advances. Evolving digital publishing technologies play a crucial role in advancing AAAS's global mission for science communication and benefitting humankind.