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arXiv 0710.4779nlin.CD
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混沌保面积映射的前导Pollicott-Ruelle共振

Leading Pollicott-Ruelle Resonances for Chaotic Area-Preserving Maps

Roberto Venegeroles

摘要:

非线性科学的最新研究表明,不仅双曲动力系统,而且混合动力系统在混沌状态下也可能表现出指数松弛。导致概率分布和关联函数衰减的弛豫速率与经典演化预解式(Perron-Frobenius算子)极对数有关,即所谓的Pollicott-Ruelle共振。在这份简要报告中,主要的波利科特-吕勒共振分析计算的一般类的面积保持地图。除了与动量动力学扩散模式(慢速率)相关的领先共振外,我们还计算了与角关联相关的领先更快速率。分析结果与文献中已有的结果进行了比较。

英文摘要:

Recent investigations in nonlinear sciences show that not only hyperbolic but also mixed dynamical systems may exhibit exponential relaxation in the chaotic regime. The relaxation rates, which lead the decay of probability distributions and correlation functions, are related to the classical evolution resolvent (Perron-Frobenius operator) pole logarithm, the so called Pollicott-Ruelle resonances. In this Brief Report, the leading Pollicott-Ruelle resonances are calculated analytically for a general class of area-preserving maps. Besides the leading resonances related to the diffusive modes of momentum dynamics (slow rate), we also calculate the leading faster rate, related to the angular correlations. The analytical results are compared to the existing results in the literature.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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