Relevance of sampling schemes in light of Ruelle's linear response theory

Relevance of sampling schemes in light of Ruelle's linear response theory
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根据 Ruelle 线性响应理论采样方案的相关性

DOI:
10.1088/0951-7715/25/5/1311
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发表时间:
2012
期刊:
影响因子:
1.7
通讯作者:
Lucarini V
Lucarini V
中科院分区:
数学2区
文献类型:
--
作者:
Lucarini V

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我们重新考虑非平衡定态对扰动的线性响应理论。我们首先表明,使用一般的功能分解的时空相关的强迫,我们可以定义基本的非线性,使我们能够构建系统的线性响应一般扰动。从SRB测度的定义出发,研究了采用不同抽样方案分析系统响应的结果。我们表明,只有一个特定的选择的时间范围评估系统的响应一般的时间依赖性扰动允许我们获得的公式首先提出的Ruelle。我们还讨论了特殊情况下的周期性扰动,表明当他们考虑到采样可以微调,使正确的时间范围的定义无关紧要。最后,我们讨论了我们的结果的影响,在分析数值实验的输出的策略,提供了一个严格的审查Reick提出的公式。
We reconsider the theory of the linear response of non-equilibrium steady states to perturbations. We first show that using a general functional decomposition for space–time dependent forcings, we can define elementary susceptibilities that allow us to construct the linear response of the system to general perturbations. Starting from the definition of SRB measure, we then study the consequence of taking different sampling schemes for analysing the response of the system. We show that only a specific choice of the time horizon for evaluating the response of the system to a general time-dependent perturbation allows us to obtain the formula first presented by Ruelle. We also discuss the special case of periodic perturbations, showing that when they are taken into consideration the sampling can be fine-tuned to make the definition of the correct time horizon immaterial. Finally, we discuss the implications of our results in terms of strategies for analysing the outputs of numerical experiments by providing a critical review of a formula proposed by Reick.
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DOI: 10.1088/0951-7715/11/1/002
发表时间: 1998
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