Resonances of chaotic dynamical systems.

Resonances of chaotic dynamical systems.
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混沌动力系统的共振。

DOI:
10.1103/physrevlett.56.405
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发表时间:
1986
影响因子:
8.6
通讯作者:
D. Ruelle
D. Ruelle
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
D. Ruelle

文献摘要

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给出了一类混沌动力系统(公理-A系统)的功率谱的解析性质。功率谱是亚纯的一条;极点(共振)的位置取决于所考虑的系统,但只有它们的残差取决于所监测的可观测值。在这些结果的关系,我们还讨论了指数或非指数衰减的相关函数在无穷远。总之,它似乎是可取的,以分析相关函数的衰减和物理时间演化的功率谱的可能的解析性,并为计算机生成的简单动力系统(一般非公理A)。
We present analytic properties of the power spectrum for a class of chaotic dynamical systems (Axiom-A systems). The power spectrum is meromorphic in a strip; the position of the poles (resonances) depends on the system considered, but only their residues depend on the observable monitored. In relation with these results we also discuss the exponential or nonexponential decay of correlation functions at infinity. In conclusion, it appears desirable to analyze the decay of correlation functions and the possible analyticity of power spectra for physical time evolutions, and for computer generated simple dynamical systems (non-Axiom-A in general).