Zero-lag long-range synchronization via dynamical relaying
Zero-lag long-range synchronization via dynamical relaying
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DOI：
10.1103/physrevlett.97.123902
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发表时间：
2006-09-22
影响因子：
8.6
通讯作者：
Garcia-Ojalvo, Jordi
中科院分区：
文献类型：
--
作者：
Fischer, Ingo;Vicente, Raul;Garcia-Ojalvo, Jordi
我们证明了两个延迟耦合振子之间的同步可以通过第三个中介元件来实现，第三个中介元件令人惊讶地落后于同步的外部元件。由此获得的零滞后同步在相当大的参数范围内是稳健的。我们用实验和数值证据证实了我们的说法，即在具有长的元件间耦合延迟的三个耦合半导体激光器链中存在这样的同步解。在具有相同耦合结构的神经元模型中验证了该机制的通用性。因此，我们的结果表明，零滞后同步混沌动力学状态可以通过中继实现远距离同步，而不受延迟量的限制。
We show that isochronous synchronization between two delay-coupled oscillators can be achieved by relaying the dynamics via a third mediating element, which surprisingly lags behind the synchronized outer elements. The zero-lag synchronization thus obtained is robust over a considerable parameter range. We substantiate our claims with experimental and numerical evidence of such synchronization solutions in a chain of three coupled semiconductor lasers with long interelement coupling delays. The generality of the mechanism is validated in a neuronal model with the same coupling architecture. Thus, our results show that zero-lag synchronized chaotic dynamical states can occur over long distances through relaying, without restriction by the amount of delay.