| 力与耦合系统的交互作用和随机能量共振 |
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| 引用本文： | 林敏,张美丽.力与耦合系统的交互作用和随机能量共振[J].物理学报,2011,60(2):20501-020501. |
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| 作者姓名： | 林敏 张美丽 |
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| 作者单位： | 中国计量学院计量测试工程学院,杭州 310018 |
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| 基金项目： | 国家自然科学基金(批准号:10972207)和浙江省自然科学基金(批准号:Y7080111)资助的课题. |
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| 摘 要： | 外界对系统作功的过程就是系统状态发生变化的过程.根据Langevin方程的随机动力学特性,采用微观动力学和宏观热力学方法,建立了基于单一随机轨线的耦合双稳系统的热力学关系.通过力与耦合系统的功交互作用定量地刻画了能量的传递和转换关系,揭示了耦合系统中存在着的随机能量共振现象.从作功与能量的关系进行分析,进一步揭示了随机共振产生的物理本质.
关键词：
耦合双稳系统
随机热力学
随机能量共振
功
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| 关 键 词： | 耦合双稳系统 随机热力学 随机能量共振 功 |
| 收稿时间： | 2010-04-28 |
Interaction of force and coupled system and stochastic energetic resonance |
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| Lin Min,Zhang Mei-Li.Interaction of force and coupled system and stochastic energetic resonance[J].Acta Physica Sinica,2011,60(2):20501-020501. |
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| Authors: | Lin Min Zhang Mei-Li |
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| Institution: | College of Metrology Technology and Engineering, China Jiliang University, Hangzhou 310018, China;College of Metrology Technology and Engineering, China Jiliang University, Hangzhou 310018, China |
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| Abstract: | The process of work done on the system by the external force is equivalent to the process of change in system state. The thermodynamic relations of coupled bistable system based on single stochastic trajectories are established by using microcosmic dynamics and macroscopic thermodynamic methods, according to the stochastic dynamics described by Langevin equation. The transmission and conversion relations of energy are quantitatively characterized via interaction of force and work of coupled system, which reveals the coupled system exhibiting stochastic energetic resonance phenomenon. Through analyzing relationship between work done and energy, the physical nature of produced stochastic resonance is further revealed. |
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| Keywords: | coupled bistable system stochastic thermodynamics stochastic energetic resonance work |
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