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arXiv 1605.02191nlin.CD
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耦合映射网络中具有反常李雅普诺夫谱的混沌Griffiths相

Chaotic Griffiths Phase with Anomalous Lyapunov Spectra in Coupled Map Networks

Kenji Shinoda, Kunihiko Kaneko

摘要:

利用耦合映射研究了网络上耦合混沌振子的动力学行为。在代表耦合强度或元素度的参数值的宽范围内,系统重复相干簇的形成和分裂。簇大小的分布遵循指数为$α$的幂律,其随参数值而变化。正的李雅普诺夫指数的数量和它们的谱与系统大小的幂成比例,指数$β$也随参数变化。揭示了尺度关系$α\sim 2(β+1)$,它似乎是普适的参数和网络无关。

英文摘要:

Dynamics of coupled chaotic oscillators on a network are studied using coupled maps. Within a broad range of parameter values representing the coupling strength or the degree of elements, the system repeats formation and split of coherent clusters. The distribution of the cluster size follows a power law with the exponent $α$, which changes with the parameter values. The number of positive Lyapunov exponents and their spectra are scaled anomalously with the power of the system size with the exponent $β$, which also changes with the parameters. The scaling relation $α\sim 2(β+1)$ is uncovered, which seems to be universal independent of parameters and networks.

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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