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arXiv 1105.2230nlin.CDcond-mat.dis-nnmath.DS
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对称相位振荡器网络中的混沌

Chaos in Symmetric Phase Oscillator Networks

Christian Bick, Marc Timme, Danilo Paulikat, Dirk Rathlev, Peter Ashwin

摘要:

相位耦合振荡器是物理学和生物学中弱相互作用振荡单元网络的典型模型。到目前为止,量化同步的序参量仅在具有非均匀性的系统中被发现是混沌的。在这里,我们表明,即使是对称系统的相同的振子可能不仅表现出混沌动力学,但也混沌波动的序参量。我们的发现意味着,不均匀性和振幅变化都不是获得混沌所必需的,即,相的非线性相互作用引起必要的不稳定性。

英文摘要:

Phase-coupled oscillators serve as paradigmatic models of networks of weakly interacting oscillatory units in physics and biology. The order parameter which quantifies synchronization was so far found to be chaotic only in systems with inhomogeneities. Here we show that even symmetric systems of identical oscillators may not only exhibit chaotic dynamics, but also chaotically fluctuating order parameters. Our findings imply that neither inhomogeneities nor amplitude variations are necessary to obtain chaos, i.e., nonlinear interactions of phases give rise to the necessary instabilities.

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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